Remove unnecessary calls to the database for user and permission metadata.

data/database.py

@@ -14,18 +14,12 @@ db = app.config['DB_DRIVER'](app.config['DB_NAME'],
                              **app.config['DB_CONNECTION_ARGS'])
 
 
-def connect_db():
-  logger.debug('Connectin to database.')
-  db.connect()
-
-
 def close_db(exc):
   if not db.is_closed():
     logger.debug('Disconnecting from database.')
     db.close()
 
 
-app.before_request(connect_db)
 app.teardown_request(close_db)