Revert "[Fuchsia][cmake] Allow using FatLTO when building runtimes"#119252

ilovepi merged 1 commit intomainllvm/llvm-project:mainfrom

revert-112277-users/ilovepi/spr/libcxxcmake-allow-using-fatlto-in-libc-buildsllvm/llvm-project:revert-112277-users/ilovepi/spr/libcxxcmake-allow-using-fatlto-in-libc-buildsCopy head branch name to clipboard