Normalize chat in reducer, not action

app/soapbox/actions/importer/normalizer.js

@@ -40,13 +40,3 @@ export function normalizeAccount(account) {
 
   return account;
 }
-
-export function normalizeChat(chat, normalOldChat) {
-  const normalChat   = { ...chat };
-  const { account, last_message: lastMessage } = chat;
-
-  if (account) normalChat.account = account.id;
-  if (lastMessage) normalChat.last_message = lastMessage.id;
-
-  return normalChat;
-}

app/soapbox/reducers/chats.js

@@ -9,9 +9,18 @@ import {
   CHAT_READ_SUCCESS,
   CHAT_READ_REQUEST,
 } from 'soapbox/actions/chats';
-import { normalizeChat } from 'soapbox/actions/importer/normalizer';
 import { STREAMING_CHAT_UPDATE } from 'soapbox/actions/streaming';
 
+const normalizeChat = (chat, normalOldChat) => {
+  const normalChat   = { ...chat };
+  const { account, last_message: lastMessage } = chat;
+
+  if (account) normalChat.account = account.id;
+  if (lastMessage) normalChat.last_message = lastMessage.id;
+
+  return normalChat;
+};
+
 const importChat = (state, chat) => state.setIn(['items', chat.id], fromJS(normalizeChat(chat)));
 
 const importChats = (state, chats, next) =>