small typo/useless imports

Author: bentsku

Diff for: app/api/redis_helper.py

@@ -1,5 +1,4 @@
 from app import user_store as u_store
-from secrets import token_urlsafe
 
 
 EXPIRE_LOGS = 3600

Diff for: app/config_app.py

@@ -1,6 +1,6 @@
 import os
 
-_REDIS_HOST = os.environ.get('REDIS_HOST') or 'redis-sigrun'
+_REDIS_HOST = os.environ.get('REDIS_HOST') or 'redis-sns-endpoint'
 _REDIS_PORT = int(os.environ.get('REDIS_PORT') or 6379)