Remove the CI canceling action

Signed-off-by: Nikolay Blagoev <blagoevn@vmware.com>

Author: nblagoev

.github/workflows/build.yml

@@ -10,13 +10,6 @@ on:
       - master
   workflow_dispatch: {}
 jobs:
-  cleanup-runs: # automatically cancel CI runs on pushes to the same branch
-    runs-on: ubuntu-latest
-    steps:
-      - uses: rokroskar/workflow-run-cleanup-action@master
-        if: "!startsWith(github.ref, 'refs/tags/') && github.ref != 'refs/heads/master'"
-        env:
-          GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
   build:
     name: Node.js v${{ matrix.node-version }} on ${{ matrix.os }}
     strategy: