Revert "KVM: arm64: Reschedule as needed when destroying the stage-2 page-tables"

This reverts commit e9abe311.

syzkaller has managed to tease out multiple bugs in this change and
fixing-forward didn't remedy the situation. Considering newly-introduced
memory safety issues the potential for scheduler stalls don't seem that
bad in comparison

Link: https://lore.kernel.org/kvmarm/68c09802.050a0220.3c6139.000d.GAE@google.com/


Message-ID: <20250910180930.3679473-2-oliver.upton@linux.dev>
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>