remove unused interface

src/Umbraco.Web.UI.Client/src/packages/core/store/store.ts

@@ -35,8 +35,3 @@ export interface UmbEntityDetailStore<T> extends UmbDataStore {
 	 */
 	save(data: T[]): Promise<void>;
 }
-
-export interface UmbContentStore<T> extends UmbEntityDetailStore<T> {
-	// TODO: make something that is specific for UmbContentStore, or then we should get rid of it. But for now i kept it as we might want this for rollback or other things specific to Content types.
-	save(data: T[]): Promise<void>;
-}