This bug was initially created as a copy of Bug #1827075

I am copying this bug because: 



Description of problem:
Below message appreas when try to remove non-empty image registry:
message: ’googleapi: Error 409: The bucket you tried to delete was not empty.,

Version-Release number of selected component (if applicable):
4.4.0-0.nightly-2020-04-25-191512

How reproducible:
Not always

Steps to Reproduce:
1.Import some images to image registry with GSC storage backend
2.Try to remove image registry
3.Try to bring image registry back and check pods under openshift-image-registry
$ oc get pods
NAME                                               READY   STATUS        RESTARTS   AGE
cluster-image-registry-operator-78c9b64968-dr6f5   2/2     Running       0          20h
image-registry-549fbdc64f-jlzmt                    0/1     Pending       0          81s
image-registry-69bd779cdd-9pbwg                    0/1     Terminating   0          82s
image-registry-7bb54df499-lpb8g                    0/1     Pending       0          81s
node-ca-79vw9                                      1/1     Running       1          20h
node-ca-chnkb                                      1/1     Running       1          20h
node-ca-w6csh                                      1/1     Running       1          20h
node-ca-x5kbv                                      1/1     Running       1          20h
node-ca-z2hzd                                      1/1     Running       1          20h


Actual results:
Image registry pod cannot come back.

Expected results:
It should be back.

Additional info:
Workaround: manually delete bucket from gcp console(operator will prompt "unable to sync: unable to finalize resource: unable to remove storage: googleapi: Error 404: Not Found, notFound, googleapi: Error 404: Not Found"), the bucket can be deleted in GCP console, then recreate a bucket with same name of the deleted one.