[clangd] Remove another option that was effectively always true. NFC
Revert "[RISCV] Legalize select when Zbt extension available"We found issues with this patch in additional testing. Backing out whilewe work on a fix.This reverts commit 71ed4b6ce57d8843ef705af8f98305976a8f107a.
[flang][driver] Use __FLANG_VERISION__ in f18.cpp (nfc)Just a minor improvement suggested in a post-commit review here:https://reviews.llvm.org/D94422