chore: jsonfmt recoveryservicesbackup (Azure#7010)

Author: nschonni

specification/recoveryservicesbackup/resource-manager/Microsoft.RecoveryServices/stable/2016-12-01/examples/AzureWorkload/ProtectionContainers_Unregister.json

@@ -15,7 +15,6 @@
         "Retry-After": 60
       }
     },
-    "204": {
-    }
+    "204": {}
   }
 }