Revert "xens_config: arm: Allow CPU-supported unaligned accesses"

This reverts commit 8271c3280e5b7f5637935a212df66df02c1f8462.
Revert " arm: Allow CPU-supported unaligned accesses"

This reverts commit b17545cb0d3696a4dae69aee2c27c74113b0f41d.
Revert "ARM: mutex: use generic atomic_dec-based implementation for ARMv6+"

This reverts commit 936ce1d71c75ccfddae6ffafdc7bd8bb7ad6aaf3.
Revert " ARM: 7467/1: mutex: use generic xchg-based implementation for ARMv6+"

This reverts commit 8a3761bba9b2d154386426a086d9be1b3f3b8fa6.
Revert " SCHEDULER: Autogroup patch group by current user android UID instead of task ID"

This reverts commit eba1c1d1aaf75533525fe9d44ebf9b3ffc0698f9.