removing check_coins from connections

prosper_bots/connections.py

@@ -176,53 +176,3 @@ def cooldown(
     })
 
     return False
-
-COINS_COLLECTION = 'coins'
-def check_coins(
-        ticker,
-        db_conn,
-        cache_buster=False,
-        cache_age=86400,
-        coins_collection=COINS_COLLECTION,
-        logger=api_config.LOGGER
-):
-    """checks if ticker is a crypto-coin
-
-    Args:
-        ticker (str): name of product to check
-        db_conn (:obj:`tinymongo.TinyMongoDatabase`): database to use
-        cache_buster (bool, optional): skip cache
-        logger (:obj:`logging.logger`, optional): logging handle
-
-    Returns:
-        (bool): coin or not
-
-    """
-    cache_time = time.time()
-
-    logger.info('--checking cache for %s', ticker)
-    cached_data = list(db_conn[coins_collection].find(
-        {'cache_time': {'$gt': cache_time - cache_age}}
-    ))
-
-    coins_list = []
-    if not cached_data or cache_buster:
-        ## Refresh cache ##
-        logger.info('--fetching coin info')
-        coins_list = info.supported_symbol_info('commodity')
-        coins_df = pd.DataFrame(coins_list, columns=['coin_ticker'])
-        coins_df['cache_time'] = cache_time
-        coin_cache = list(coins_df.to_dict(orient='records'))
-
-        logger.info('--clearing cache')
-        db_conn[coins_collection].delete_many({})
-
-        logger.info('--rebuilding cache')
-        db_conn[coins_collection].insert_many(coin_cache)
-
-    else:
-        logger.info('--reading cached values')
-        coins_df = pd.DataFrame(cached_data)
-        coins_list = list(coins_df['coin_ticker'])
-
-    return ticker in coins_list