This cleans up includes that clangd reports as unused, usually by deleting the offending include. The process was to delete an include and see if it still builds. If not, try to find a more specific include(s) that works, that was previously transitively included. If the original include seems intended to re-export said transitive include, mark the transitive include as `// IWYU pragma: export`. Otherwise, replace the original include with the transitive include(s). If none of the above applies, because the original file depends on code directly in the include somehow, or the direct include is an external dependency that cannot be modified, restore the original include and mark it as `// IWYU pragma: keep`.
Change-Id: I5ce3d34dad76b0cad0a6a7990fea13add393aad3
clangd broke because it can't look through symlinks. compile_commands
manipulation does not fix it, clangd configuration does not fix it, a
vfs overlay does not fix it, and while a combination of those can fix
it with a bind mount in place that's just too cursed to even consider
clangd bug: https://github.com/llvm/llvm-project/issues/116877
Change-Id: I8e3e8489548eb3a7aa65ac9d12a5ec8abf814aec
skyrelia