[clang][deps] Remove remainder of the old libclang API#12023

jansvoboda11 merged 1 commit intonextswiftlang/llvm-project:nextfrom

jan_svoboda/remove-old-libclang-api-follow-upswiftlang/llvm-project:jan_svoboda/remove-old-libclang-api-follow-upCopy head branch name to clipboard