removed ccex from keys.json temporarily
removed ccex from keys.json temporarily

ccxt/ccxt,thijstriemstra/ccxt,tritoanst/ccxt,ccxt/ccxt,ccxt/ccxt,ccxt/ccxt,tritoanst/ccxt,thijstriemstra/ccxt,tritoanst/ccxt,tritoanst/ccxt,aiueogawa/ccxt,ccxt/ccxt,thijstriemstra/ccxt,aiueogawa/ccxt,aiueogawa/ccxt,thijstriemstra/ccxt,aiueogawa/ccxt