[clang] [clang-tools-extra] [llvm] [clang-query] Remove support for srcloc output (PR #92442)

[Sam McCall via llvm-commits]

sam-mccall wrote:

Just wanted to say thanks - I didn't ever entirely understand how this was used, but the build speed/complexity has been somewhat painful. Removing features is thankless and sometimes risky, so I was expecting we'd live with that speedbump forever.

https://github.com/llvm/llvm-project/pull/92442