Remove requireLogin action attribute

The affected actions have been changed to check that the user is logged in by [] so this attribute is no longer needed.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=159572365

java/google/registry/ui/server/registrar/RegistrarSettingsAction.java

@@ -64,7 +64,6 @@ import javax.servlet.http.HttpServletRequest;
  */
 @Action(
   path = RegistrarSettingsAction.PATH,
-  requireLogin = true,
   method = Action.Method.POST,
   auth =
       @Auth(