graphite2: Remove cmake patch when possible
Those files are arch dependent and should be in libdir.
Patch taken from fedora: https://src.fedoraproject.org/rpms/graphite2/blob/41fb7c104c8f9293254abaa91bbda1daafb458cd/f/graphite2-1.2.0-cmakepath.patch
Upstream PR: https://github.com/silnrsi/graphite/pull/60
This will also remove unnecessary cmake files from Platform.