Don't retry unlocking when it fails normally
Don't retry unlocking when it fails normally

We only want to retry when there is a connection error.

Signed-off-by: Zack Cerza <d7cdf09fc0f0426e98c9978ee42da5d61fa54986@redhat.com>

dmick/teuthology,caibo2014/teuthology,ceph/teuthology,SUSE/teuthology,dmick/teuthology,ktdreyer/teuthology,robbat2/teuthology,robbat2/teuthology,SUSE/teuthology,dreamhost/teuthology,caibo2014/teuthology,SUSE/teuthology,dmick/teuthology,ktdreyer/teuthology,ceph/teuthology,dreamhost/teuthology