Force remove to prevent error with no file present

[full ci]

Author: Steve Kirkland

.gitignore

@@ -32,3 +32,6 @@ features/fixtures/mazerunner/Assets/Bugsnag
 features/fixtures/mazerunner/.vscode
 .DS_Store
 maze_output.zip
+maze_output/
+bugsnag-unity-performance.iml
+.idea/

features/scripts/build_windows.sh

@@ -28,8 +28,8 @@ pushd $SCRIPT_DIR
 popd
 
 # remove post build job for iOS bitcode as namespace is not available and it doesn't seem possible to conditionally remove using preprocessor directives
-rm "$project_path/Assets/Editor/DisablingBitcodeiOS.cs"
-rm "$project_path/Assets/Editor/DisablingBitcodeiOS.cs.meta"
+rm -f "$project_path/Assets/Editor/DisablingBitcodeiOS.cs"
+rm -f "$project_path/Assets/Editor/DisablingBitcodeiOS.cs.meta"
 
 UNITY_PATH="/mnt/c/Program Files/Unity/Hub/Editor/$UNITY_PERFORMANCE_VERSION/Editor/Unity.exe"