Fix warnings

lib/aggiedit/accounts.ex

@@ -8,7 +8,6 @@ defmodule Aggiedit.Accounts do
 
   alias Aggiedit.Accounts.{User, UserToken, UserNotifier}
   alias Aggiedit.Rooms
-  alias Aggiedit.Rooms.Room
 
   ## Database getters
 
@@ -142,7 +141,7 @@ defmodule Aggiedit.Accounts do
     with {:ok, query} <- UserToken.verify_change_email_token_query(token, context),
          %UserToken{sent_to: email} <- Repo.one(query),
          {:ok, _} <- Repo.transaction(user_email_multi(user, email, context)),
-         {:ok, user} <- set_user_room(user) do
+         {:ok, _user} <- set_user_room(user) do
       :ok
     else
       _ -> :error