finally, this directory is (should be!) totally clean

src/include/utils/builtins.h

src/include/utils/catcache.h

src/include/utils/excid.h

src/include/utils/fmgrtab.h

src/include/utils/inval.h

src/include/utils/lselect.h

src/include/utils/lsyscache.h

src/include/utils/mcxt.h

src/include/utils/portal.h

src/include/utils/psort.h

src/include/utils/rel.h

src/include/utils/rel2.h

src/include/utils/relcache.h

src/include/utils/syscache.h