Revert "rwsem.c/rwsem-spinlock.c: squashed commits"

This reverts commit 48226b42d34f00d88918cb259d5df852f6a111af.
Revert "locking, rwsem: Annotate inner lock as raw"

This reverts commit 0d07bf1927e380bcde6657678a344a6a027f8118.