[llvm-objcopy] Delete --build-id-link-{dir,input,output}

Authored by MaskRay on Feb 15 2021, 11:17 AM.


[llvm-objcopy] Delete --build-id-link-{dir,input,output}

The few options are niche. They solved a problem which was traditionally solved
with more shell commands (llvm-readelf -n fetches the Build ID. Then
ln is used to hard link the file to a directory derived from the Build ID.)

Due to limitation, they are no longer used by Fuchsia and they don't appear to
be used elsewhere (checked with Google Search and Debian Code Search). So delete
them without a transition period.

Announcement: https://lists.llvm.org/pipermail/llvm-dev/2021-February/148446.html

Differential Revision: https://reviews.llvm.org/D96310