
The header from 62e0681afb478a4005efb6ba3598c24dc24866ee does something with LLVM_FALLTHROUGH. Now that llvm-project has switched to C++17 and LLVM_FALLTHROUGH uses have been migrated to [[fallthrough]], the header is unneeded. Reviewed By: JDevlieghere Differential Revision: https://reviews.llvm.org/D131422