Rollback changes r89516: Added two SubtargetFeatures::AddFeatures methods, which accept a comma-separated string or already parsed command line parameters as input, and some code re-factoring to use these new methods.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89893 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed