Here is repost.
* sysdeps/x86_64/memset.S: Remove USE_MULTIARCH conditional for
definining bcopy.
* sysdeps/x86_64/multiarch/init-arch.c (__init_cpu_features):
Remove Prefer_SSE_for_memop.
* sysdeps/x86_64/multiarch/init-arch.h: Remove
bit_Prefer_SSE_for_memop, index_Prefer_SSE_for_memop,
HAS_PREFER_SSE_FOR_MEMOP.
* sysdeps/x86_64/multiarch/Makefile (sysdep_routines): Remove
memset-x86-64.
* sysdeps/x86_64/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list):
Remove zero, memset ifunc support.
* sysdeps/x86_64/multiarch/bzero.S: Remove file.
* sysdeps/x86_64/multiarch/memset-x86-64.S: Likewise.
* sysdeps/x86_64/multiarch/memset.S: Likewise.
* sysdeps/x86_64/multiarch/memset_chk.S: Likewise.