reverts regression introduced in
d2ad3f5074877475c8f0ec0fbbb323a05fe8cf78.
The commit correctly removed dest_builder from InstallArtifactStep, but
the change to installLibraryHeaders was incorrect since it affected
different steps than that one.
e0890734f0Andrew Kelley committed on 4/14/2023, 6:59:27 PMparent0733c8c