Revert r247080, "LowerBitSets: Extend pass to support functions as bitset
members." as it causes test failures on a number of bots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@247088 91177308-0d34-0410-b5e6-96231b3b80d8
8 files changed