diff --git a/admin/win/Toolchain-mingw32-openSUSE.cmake b/admin/win/Toolchain-mingw32-openSUSE.cmake
deleted file mode 100644
index beba4c40fc552..0000000000000
--- a/admin/win/Toolchain-mingw32-openSUSE.cmake
+++ /dev/null
@@ -1,37 +0,0 @@
-SET(MINGW_PREFIX  "i686-w64-mingw32")
-
-# SPDX-FileCopyrightText: 2012 ownCloud, Inc.
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-# this one is important
-SET(CMAKE_SYSTEM_NAME Windows)
-
-
-# specify the cross compiler
-SET(CMAKE_C_COMPILER ${MINGW_PREFIX}-gcc)
-SET(CMAKE_CXX_COMPILER ${MINGW_PREFIX}-g++)
-SET(CMAKE_RC_COMPILER ${MINGW_PREFIX}-windres)
-
-# where is the target environment containing libraries
-SET(CMAKE_FIND_ROOT_PATH  /usr/${MINGW_PREFIX}/sys-root/mingw)
-SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY  ONLY)
-SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE  ONLY)
-SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM  NEVER)
-
-
-## configure qt variables
-# generic
-SET(QMAKESPEC               win32-g++-cross)
-
-# dirs
-SET(QT_LIBRARY_DIR          /usr/${MINGW_PREFIX}/bin)
-SET(QT_PLUGINS_DIR          ${CMAKE_FIND_ROOT_PATH}/lib/qt5/plugins)
-SET(QT_MKSPECS_DIR          ${CMAKE_FIND_ROOT_PATH}/share/qt5/mkspecs)
-SET(QT_QT_INCLUDE_DIR       ${CMAKE_FIND_ROOT_PATH}/include)
-
-# qt tools
-SET(QT_QMAKE_EXECUTABLE         ${MINGW_PREFIX}-qmake-qt5)
-SET(QT_MOC_EXECUTABLE           ${MINGW_PREFIX}-moc-qt5)
-SET(QT_RCC_EXECUTABLE           ${MINGW_PREFIX}-rcc-qt5)
-SET(Qt5Widgets_UIC_EXECUTABLE   ${MINGW_PREFIX}-uic-qt5)
-SET(QT_LRELEASE_EXECUTABLE      ${MINGW_PREFIX}-lrelease-qt5)
diff --git a/admin/win/create_stable_toolchain.sh b/admin/win/create_stable_toolchain.sh
deleted file mode 100755
index 9c2537953f286..0000000000000
--- a/admin/win/create_stable_toolchain.sh
+++ /dev/null
@@ -1,33 +0,0 @@
-#!/bin/bash
-
-# SPDX-FileCopyrightText: 2016 ownCloud, Inc.
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-#
-# This script creates a new windows toolchain repository in OBS.
-# It only works for versions that do not yet exist.
-#
-# Make sure to adopt the variable stableversion.
-
-# Set the new stable version accordingly:
-stableversion=2.1
-targetproject="isv:ownCloud:toolchains:mingw:win32:${stableversion}"
-
-# Create the new repo
-
-# get the xml build description of the stable repo
-xml=`osc meta prj isv:ownCloud:toolchains:mingw:win32:stable`
-stable_xml="${xml/stable/$stableversion}"
-
-echo $stable_xml
-
-echo $stable_xml | osc meta prj -F - ${targetproject}
-
-
-# now copy all packages
-packs=`osc ls isv:ownCloud:toolchains:mingw:win32:stable`
-
-for pack in $packs
-do
-    osc copypac isv:ownCloud:toolchains:mingw:win32:stable $pack $targetproject
-done
diff --git a/admin/win/download_runtimes.sh b/admin/win/download_runtimes.sh
deleted file mode 100755
index f73669cf29241..0000000000000
--- a/admin/win/download_runtimes.sh
+++ /dev/null
@@ -1,22 +0,0 @@
-#!/bin/sh -x
-
-# SPDX-FileCopyrightText: 2014 ownCloud, Inc.
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-#VS2013
-base_url=http://download.microsoft.com/download/2/E/6/2E61CFA4-993B-4DD4-91DA-3737CD5CD6E3
-tmp_path=${1:-/tmp/.vcredist}
-
-mkdir -p $tmp_path
-
-copy_cached_file() {
-  file=$1
-  if [ ! -e $tmp_path/$file ]; then
-    wget -O $tmp_path/$file $base_url/$file
-  fi
-  cp -a $tmp_path/$file $PWD
-}
-
-copy_cached_file "vcredist_x64.exe"
-copy_cached_file "vcredist_x86.exe"
-
diff --git a/cmake/scripts/generate_findpackage_file b/cmake/scripts/generate_findpackage_file
deleted file mode 100644
index d0d164dc25307..0000000000000
--- a/cmake/scripts/generate_findpackage_file
+++ /dev/null
@@ -1,140 +0,0 @@
-#!/usr/bin/env ruby
-
-# Simple script to generate simple cmake modules for finding
-# libraries (packages)
-#
-# usage: generate_findpackage_file
-# then you will be prompted to enter the required parameters
-#
-#####################################################################
-#
-# SPDX-FileCopyrightText: 2006 Alexander Neundorf <neundorf@kde.org>
-# SPDX-FileCopyrightText: 2006 Andreas Schneider <asn@cryptomilk.org>
-# SPDX-License-Identifier: GPL-2.0-or-later
-#
-
-require 'readline'
-
-package=Readline.readline("Name of package: ")
-
-name=Readline.readline("\nYour Name (for copyright): ")
-
-email=Readline.readline("\nYour mail (for copyright): ")
-
-pkgconfig=Readline.readline("\npkgconfig package name (e.g. \"libxml-2.0\", leave empty to skip pkgconfig): ")
-
-header=Readline.readline("\nLook for header (e.g. \"jpeglib.h\" or \"libxml/xpath.h\"): ")
-
-incSubDir=Readline.readline("\nLook for header subdir (e.g. \"libxml2\", empty to skip ): ")
-
-libs=Readline.readline("\nLook for library (e.g. \"xml2\" or \"avcodec avutil\"): ")
-
-t = Time.now
-
-cmakeIncDirName=package.upcase+"_INCLUDE_DIR"
-cmakeIncDirNames=package.upcase+"_INCLUDE_DIRS"
-cmakeLibNames=package.upcase+"_LIBRARIES"
-cmakeDefsName=package.upcase+"_DEFINITIONS"
-cmakeFoundName=package.upcase+"_FOUND"
-cmakeQuietName=package+"_FIND_QUIETLY"
-cmakeRequiredName=package+"_FIND_REQUIRED"
-
-file=File.new("Find#{package}.cmake", "w+")
-
-
-file.printf("# - Try to find #{package}\n")
-file.printf("# Once done this will define\n")
-file.printf("#\n")
-file.printf("#  #{cmakeFoundName} - system has #{package}\n")
-file.printf("#  #{cmakeIncDirNames} - the #{package} include directory\n")
-file.printf("#  #{cmakeLibNames} - Link these to use #{package}\n")
-file.printf("#  #{cmakeDefsName} - Compiler switches required for using #{package}\n")
-file.printf("#\n")
-file.printf("#  Copyright (c) #{t.year} #{name} <#{email}>\n")
-file.printf("#\n")
-file.printf("#  Redistribution and use is allowed according to the terms of the New\n")
-file.printf("#  BSD license.\n")
-file.printf("#  For details see the accompanying COPYING-CMAKE-SCRIPTS file.\n")
-file.printf("#\n")
-
-file.printf("\n")
-file.printf("\n")
-
-file.printf("if (#{cmakeLibNames} AND #{cmakeIncDirNames})\n")
-file.printf("  # in cache already\n")
-file.printf("  set(#{cmakeFoundName} TRUE)\n")
-file.printf("else (#{cmakeLibNames} AND #{cmakeIncDirNames})\n")
-
-if not pkgconfig.empty?
-   file.printf("  find_package(PkgConfig)\n")
-   file.printf("  if (PKG_CONFIG_FOUND)\n")
-   file.printf("    pkg_check_modules(_#{package.upcase} #{pkgconfig})\n")
-   file.printf("  endif (PKG_CONFIG_FOUND)\n")
-end
-
-file.printf("\n")
-
-file.printf("  find_path(#{cmakeIncDirName}\n")
-file.printf("    NAMES\n")
-file.printf("      #{header}\n")
-file.printf("    PATHS\n")
-if not pkgconfig.empty?
-   file.printf("      ${_#{package.upcase}_INCLUDEDIR}\n")
-end
-file.printf("      /usr/include\n")
-file.printf("      /usr/local/include\n")
-file.printf("      /opt/local/include\n")
-file.printf("      /sw/include\n")
-
-if not incSubDir.empty?
-	file.printf("    PATH_SUFFIXES\n")
-	file.printf("      #{incSubDir}\n")
-end
-file.printf("  )\n")
-
-file.printf("\n")
-
-libs.split(" ").each do |lib|
-	file.printf("  find_library(#{lib.upcase}_LIBRARY\n")
-	file.printf("    NAMES\n")
-	file.printf("      #{lib}\n")
-	file.printf("    PATHS\n")
-	if not pkgconfig.empty?
-		file.printf("      ${_#{package.upcase}_LIBDIR}\n")
-	end
-	file.printf("      /usr/lib\n")
-	file.printf("      /usr/local/lib\n")
-	file.printf("      /opt/local/lib\n")
-	file.printf("      /sw/lib\n")
-	file.printf("  )\n")
-	file.printf("\n")
-end
-
-file.printf("  set(#{cmakeIncDirNames}\n")
-file.printf("    ${#{cmakeIncDirName}}\n")
-file.printf("  )\n")
-
-file.printf("\n")
-
-libs.split(" ").each do |lib|
-	file.printf("  if (#{lib.upcase}_LIBRARY)\n")
-	file.printf("    set(#{cmakeLibNames}\n")
-	file.printf("        ${#{cmakeLibNames}}\n")
-	file.printf("        ${#{lib.upcase}_LIBRARY}\n")
-	file.printf("    )\n")
-	file.printf("  endif (#{lib.upcase}_LIBRARY)\n")
-	file.printf("\n")
-end
-
-file.printf("  include(FindPackageHandleStandardArgs)\n")
-file.printf("  find_package_handle_standard_args(#{package} DEFAULT_MSG #{cmakeLibNames} #{cmakeIncDirNames})\n")
-
-file.printf("\n")
-
-file.printf("  # show the #{cmakeIncDirNames} and #{cmakeLibNames} variables only in the advanced view\n")
-file.printf("  mark_as_advanced(#{cmakeIncDirNames} #{cmakeLibNames})\n\n")
-
-file.printf("endif (#{cmakeLibNames} AND #{cmakeIncDirNames})\n\n")
-
-printf("Done, generated Find#{package}.cmake\n")
-
diff --git a/cmake/scripts/generate_lib_file b/cmake/scripts/generate_lib_file
deleted file mode 100644
index ab01c041ea544..0000000000000
--- a/cmake/scripts/generate_lib_file
+++ /dev/null
@@ -1,122 +0,0 @@
-#!/usr/bin/env ruby
-
-# simple script to generate CMakeLists.txt for wengophone libs
-#
-# usage: generate_lib_file
-# then you will be prompted to enter the required parameters
-#
-#####################################################################
-#
-# SPDX-FileCopyrightText: 2006 Andreas Schneider <asn@cryptomilk.org>
-# SPDX-License-Identifier: GPL-2.0-or-later
-#
-
-print("Name of project: ")
-project=gets.chomp
-
-printf("\n")
-
-print("Other projects to include (e.g. \"owutil tinyxml\", leave empty to skip): ")
-otherprojects=gets.chomp
-
-printf("\n")
-
-print("Definitions (leave empty to skip): ")
-definitions=gets.chomp
-
-cmakePublicIncDirName = project.upcase+"_PUBLIC_INCLUDE_DIRS"
-cmakePrivateIncDirName = project.upcase+"_PRIVATE_INCLUDE_DIRS"
-cmakeLibName = project.upcase+"_LIBRARY"
-cmakeLibNames = project.upcase+"_LINK_LIBRARIES"
-cmakePublicDefsName = project.upcase+"_PUBLIC_DEFINITIONS"
-cmakePrivateDefsName = project.upcase+"_PRIVATE_DEFINITIONS"
-
-file=File.new("CMakeLists.txt", "w+")
-
-file.printf("project(#{project})\n")
-file.printf("\n")
-file.printf("# needed include directories to build #{project}\n")
-file.printf("# saves the variable in internal cache for later use\n")
-file.printf("set(#{cmakePublicIncDirName}\n")
-file.printf("  ${CMAKE_CURRENT_SOURCE_DIR}\n")
-file.printf("  ${CMAKE_CURRENT_SOURCE_DIR}/include\n")
-file.printf("  CACHE INTERNAL \"#{project} public include directories\"\n")
-file.printf(")\n")
-
-file.printf("\n")
-
-file.printf("set(#{cmakePrivateIncDirName}\n")
-otherprojects.split(" ").each do |otherproject|
-	file.printf("  ${#{otherproject.upcase}_PUBLIC_INCLUDE_DIRS}\n")
-end
-file.printf("  ${CMAKE_CURRENT_BINARY_DIR}\n")
-file.printf(")\n")
-
-file.printf("\n")
-
-file.printf("set(#{cmakeLibName}\n")
-file.printf("  #{project}\n")
-file.printf("  CACHE INTERNAL \"#{project} library\"\n")
-file.printf(")\n")
-
-file.printf("\n")
-
-file.printf("# #{project} lib and dependencies\n")
-file.printf("set(#{cmakeLibNames}\n")
-file.printf("  #{cmakeLibName}\n")
-otherprojects.split(" ").each do |otherproject|
-	file.printf("  ${#{otherproject.upcase}_LIBRARIES}\n")
-end
-file.printf(")\n")
-
-file.printf("\n")
-
-if not definitions.empty?
-	file.printf("set(#{cmakePublicDefsName}\n")
-	file.printf("  #{definitions}\n")
-	file.printf("  CACHE INTERNAL \"#{project} public definitions\"\n")
-	file.printf(")\n")
-
-	file.printf("\n")
-
-	file.printf("set(#{cmakePrivateDefsName}\n")
-	file.printf("  #{definitions}\n")
-	file.printf(")\n")
-
-	file.printf("\n")
-end
-
-file.printf("set(#{project}_SRCS\n")
-file.printf("  files.c\n")
-file.printf(")\n")
-
-file.printf("\n")
-
-file.printf("include_directories(\n")
-file.printf("  ${#{cmakePublicIncDirName}}\n")
-file.printf("  ${#{cmakePrivateIncDirName}}\n")
-file.printf(")\n")
-
-file.printf("\n")
-
-if not definitions.empty?
-	file.printf("add_definitions(\n")
-	file.printf("  ${#{cmakePublicDefsName}}\n")
-	file.printf("  ${#{cmakePrivateDefsName}}\n")
-	file.printf(")\n")
-
-	file.printf("\n")
-end
-
-file.printf("\n")
-
-file.printf("add_library(${#{cmakeLibName}} STATIC ${#{project}_SRCS})\n")
-
-file.printf("\n")
-
-file.printf("target_link_libraries(${#{cmakeLibNames}})\n")
-
-file.printf("\n")
-
-printf("Generated CMakeLists.txt for #{project}\n")
-
diff --git a/src/libsync/syncengine.cpp b/src/libsync/syncengine.cpp
index c7ca1f9d5944a..8abd40f6bfa47 100644
--- a/src/libsync/syncengine.cpp
+++ b/src/libsync/syncengine.cpp
@@ -1065,22 +1065,6 @@ void SyncEngine::finishSync()
     emit transmissionProgress(*_progressInfo);
     _progressInfo->startEstimateUpdates();
 
-           // post update phase script: allow to tweak stuff by a custom script in debug mode.
-    if (!qEnvironmentVariableIsEmpty("OWNCLOUD_POST_UPDATE_SCRIPT")) {
-#ifndef NDEBUG
-        const QString script = qEnvironmentVariable("OWNCLOUD_POST_UPDATE_SCRIPT");
-
-        qCDebug(lcEngine) << "Post Update Script: " << script;
-        auto scriptArgs = script.split(QRegularExpression("\\s+"), Qt::SkipEmptyParts);
-        if (scriptArgs.size() > 0) {
-            const auto scriptExecutable = scriptArgs.takeFirst();
-            QProcess::execute(scriptExecutable, scriptArgs);
-        }
-#else
-        qCWarning(lcEngine) << "**** Attention: POST_UPDATE_SCRIPT installed, but not executed because compiled with NDEBUG";
-#endif
-    }
-
     // do a database commit
     _journal->commit(QStringLiteral("post treewalk"));