It is already removed from glibc. See, https://sourceware.org/git/?p=glibc.git;a=commit;h=16396c41deab45f715ffd813280d9d685b3b281e https://sourceware.org/git/?p=glibc.git;a=commit;h=09a596cc2cf4e0f9f8e9f3bba4b1a97efcb13bcb
mentioned in commit d6ba2813
mentioned in commit dcc23771