FollowingRelationship: Remove meaningless change

lib/pleroma/following_relationship.ex

@@ -62,13 +62,10 @@ def update(%User{} = follower, %User{} = following, state) do
         follow(follower, following, state)
 
       following_relationship ->
-        {:ok, relationship} =
         following_relationship
         |> cast(%{state: state}, [:state])
         |> validate_required([:state])
         |> Repo.update()
-
-        {:ok, relationship}
     end
   end