User settings resources (ConfigMap, Role, RB) should be deleted when a user is deleted

This bug is a backport clone of [Bugzilla Bug 2019564](https://bugzilla.redhat.com/show_bug.cgi?id=2019564). The following is the description of the original bug:
—
Description of problem:
On OpenShift Dev Sandbox users are automatically deleted after a month. Also on other clusters we should cleanup resources when the user are deleted.

Version-Release number of selected component (if applicable):
4.8+

How reproducible:
Always

Steps to Reproduce:
1. Create a user
2. Use console (this should automatically create 3 resources in the namespace "openshift-console-user-settings" (a Role, a RoleBinding and a ConfigMap)
3. Delete the user

Actual results:
The three created resources in namespace "openshift-console-user-settings" stays forever

Expected results:
The three created resources in namespace "openshift-console-user-settings" should be automatically removed

Additional info:
None