[utils] Kill another no-longer-useful utility script.

 - We are long past the days of getting clang to fail in mass on swaths of code,
   fortunately.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173523 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed