Merge "Drop k8s_coreos_v1 driver"

Author: Zuul

magnum/api/controllers/v1/cluster_template.py

@@ -266,11 +266,6 @@ class ClusterTemplatesController(base.Controller):
         "different storage driver, such as overlay2. overlay2 will be set "
         "as the default storage driver from Victoria cycle in Magnum.")
 
-    _coreos_deprecation_note = (
-        "The coreos driver is deprecated in favor of the fedora_coreos "
-        "driver. Please migrate to the fedora_coreos driver. coreos "
-        "driver will be removed in a future Magnum version.")
-
     _fedora_atomic_deprecation_note = (
         "The fedora_atomic driver is deprecated in favor of the fedora_coreos "
         "driver. Please migrate to the fedora_coreos driver. fedora_atomic "