Use looser error code checking and add a verify
after deny access so that the call will succeed
whenever it can be confirmed that the access no
longer exists.
This fixes a variety of situations where previously
a return code of 1 while attempting to remove access
would cause the manila access rule to get stuck while
the actual client access export was removed or never
existed.
Change-Id: Ie058a6185e3f5d91fb1cf232301eb0ac6ddcea7e
Closes-Bug: #1651587
9157b8afb2