- Remove a reminder to look at files that don't exist anymore
- Remove ignore rules for an IDE from 2007
- Remove an ignore rule for Gcc which is no longer used since 2013

Updating file to match the one for swift and objective c.

some details based on #1221

xcuserstate files are generated from within Xcode and saved in your project bundle to remember your last opened file, the open state of any group folders, open tabs, and any other user setting your project might need to remember, this is something that shouldn't be tracked in version control