move offline messaging to chatbox

src/bot.js

@@ -126,8 +126,7 @@ class OcrccBot {
 
       if (chatOffline) {
         logger.log('info', "NO FACILITATORS ONLINE")
-        this.sendTextMessage(roomId, this.config.CHAT_OFFLINE_MESSAGE);
-        this.sendNotice(roomId, "Chat is offline")
+        this.sendNotice(roomId, "CHAT_OFFLINE")
       }
 
     } catch(err) {

src/index.js

@@ -13,7 +13,6 @@ const {
   BOT_DISPLAY_NAME,
   FACILITATOR_GROUP_ID,
   FACILITATOR_ROOM_ID,
-  CHAT_OFFLINE_MESSAGE,
   CAPTURE_TRANSCRIPTS
 } = process.env;
 
@@ -29,7 +28,6 @@ const botConfig = {
   BOT_DISPLAY_NAME,
   FACILITATOR_GROUP_ID,
   FACILITATOR_ROOM_ID,
-  CHAT_OFFLINE_MESSAGE,
   CAPTURE_TRANSCRIPTS
 }