Remove registry:2 check

clean_registry.py

@@ -173,9 +173,6 @@ class RegistryCleaner():
 
         self._get_info(container_or_service)
 
-        if not re.match("registry:2(@sha256:[0-9a-f]{64})?$", self.info['Config']['Image']):
-            error("%s is not running the registry:2 image" % (container_or_service))
-
         if LooseVersion(self.get_image_version()) < LooseVersion("v2.4.0"):
             error("You're not running Docker Registry 2.4.0+")