Remove unused lockfile forwarders from rwContainerStore API
Remove unused lockfile forwarders from rwContainerStore API

The only callers are internal, have them access r.lockfile directly.

Should not change behavior.

Signed-off-by: Miloslav Trmač <9c008e38982a5397deb855345fb164f0558459ae@redhat.com>

containers/storage,containers/storage,containers/storage