Update example.py

Author: Roach

example/example.py

@@ -1,12 +1,7 @@
 from slackeventsapi import SlackEventAdapter
 from slackclient import SlackClient
-from flask import request
 import os
 
-# We'll store the SlackClient instances for each team in a
-# dictionary, so we can have multiple teams authed
-CLIENTS = {}
-
 # Our app's Slack Event Adapter for receiving actions via the Events API
 SLACK_VERIFICATION_TOKEN = os.environ["SLACK_VERIFICATION_TOKEN"]
 slack_events_adapter = SlackEventAdapter(SLACK_VERIFICATION_TOKEN, "/slack/events")