IBX-6592: Removed unusable location/subtree limitations from state/assign policy

ezsystems/ezplatform-kernel#398

Author: barw4

eZ/Publish/Core/settings/policies.yml

@@ -26,7 +26,7 @@ parameters:
             delete: ~
 
         state:
-            assign: { Class: true, Section: true, Owner: true, Group: true, Node: true, Subtree: true, State: true, NewState: true }
+            assign: { Class: true, Section: true, Owner: true, Group: true, State: true, NewState: true }
             administrate: ~
 
         role: