Merge pull request #61734 from rhcs-dashboard/delete-storage-class

mgr/dashboard: RGW - Delete storage class

Reviewed-by: Afreen Misbah <afreen@ibm.com>
Reviewed-by: Ankush Behl <cloudbehl@gmail.com>
Reviewed-by: Nizamudeen A <nia@redhat.com>

diff --cc src/pybind/mgr/dashboard/controllers/rgw.py
Simple merge

diff --cc src/pybind/mgr/dashboard/openapi.yaml
Simple merge

diff --cc src/pybind/mgr/dashboard/services/rgw_client.py
Simple merge