Remove an unnecessary extension of NSLock

Author: dkovba

Sources/Services/ContainerNetworkService/ReservedVmnetNetwork.swift

@@ -60,7 +60,7 @@ public final class ReservedVmnetNetwork: Network {
     }
 
     public nonisolated func withAdditionalData(_ handler: (XPCMessage?) throws -> Void) throws {
-        try networkLock.lock {
+        try networkLock.withLock {
             try handler(network.map { try Self.serialize_network_ref(ref: $0) })
         }
     }
@@ -148,13 +148,3 @@ public final class ReservedVmnetNetwork: Network {
         )
     }
 }
-
-extension NSLock {
-    /// lock during the execution of the provided function
-    fileprivate func lock<T>(_ fn: () throws -> T) rethrows -> T {
-        self.lock()
-        defer { self.unlock() }
-
-        return try fn()
-    }
-}