Remove unused func.
Remove unused func.

HatsuneMiku3939/redis,HatsuneMiku3939/redis,icha024/redis,d4rk5eed/redis,HatsuneMiku3939/redis,go-redis/redis,cw2018/redis-1,jackyan/redis-1,go-redis/redis,vmihailenco/redis,linkedin-inc/redis,HatsuneMiku3939/redis,eyalpost/redis,SocialExplorerFork/redis,superkinglabs/redis