fix: deleting x360 tutorial gamerules file

Minecraft.Client/Common/Buildsteps/Xbox-postbuild.ps1

@@ -45,14 +45,15 @@ $fileCopies = @(
 	@{ Source = "Common\Tutorial\Tutorial";     Dest = "Tutorial\Tutorial" }
 )
 
-$deleteDirs = @(
+$delDirs = @(
     "Common\res\TitleUpdate\GameRules"
 )
 
-foreach ($dir in $deleteDirs) {
+foreach ($dir in $delDirs) {
     $path = Join-Path $OutDir $dir
     if (Test-Path $path) {
-        Remove-Item $path -Recurse -Force -ErrorAction SilentlyContinue
+        Get-ChildItem -Path $path -Recurse -Include *.mcs -File |
+            Remove-Item -Force -ErrorAction SilentlyContinue
     }
 }