Revert "[cmake] Use `CMAKE_INSTALL_LIBDIR` too"

This reverts commit f7a33090a91015836497c75f173775392ab0304d.

Unfortunately this causes a number of failures that didn't show up in my
local build.

NOKEYCHECK=True
GitOrigin-RevId: e941b031d316f74267350fe2373d30e28b3a2c2e
1 file changed