Merge pull request #3997 from 417-72KI/update-objc

Remove `CodeInjection` block from Objective-C.gitignore

Objective-C.gitignore

@@ -42,10 +42,3 @@ fastlane/report.xml
 fastlane/Preview.html
 fastlane/screenshots/**/*.png
 fastlane/test_output
-
-# Code Injection
-#
-# After new code Injection tools there's a generated folder /iOSInjectionProject
-# https://github.com/johnno1962/injectionforxcode
-
-iOSInjectionProject/