Fixed a bug where `podman machine rm -f` would cause a deadlock when
running with WSL.
The deadlock is caused by the Remove() function calling the Stop()
function after Remove() locks the VM. Stop() also has a lock call, which
fails and deadlocks because Remove() already claimed lock. Fix this by
moving the stop call before the lock
[NO NEW TESTS NEEDED]
Signed-off-by: Ashley Cui <acui@redhat.com>