Revert "[FMV][AArch64] Add initial AT_HWCAP3 / AT_HWCAP4 support (#161595)" (#171071)
Crashing with older glibc.
This reverts commit edb43192516a55165cc4c158eb4fd4b2d81a8fce,
57b5ba00cb421b9be17bac10036763f42fbe9298 and
9715ccae1f98162f03ac0884a3dce5045b6b9a6e.