public static function clear($stat, $key = Stats::DEFAULT_KEY)
    {
        return (bool)Redis::instance()->hdel($key, $stat);
    }
public static function clear($stat, $key = Stats::DEFAULT_KEY)
    {
        return (bool)Redis::instance()->hdel($key, $stat);
    }
public static function clear ( $ stat , $ key = Stats :: DEFAULT_KEY ) { return ( bool ) Redis :: instance ( ) -> hdel ( $ key , $ stat ) ; }
Delete a statistic with the given name.

@param  string $stat The name of the statistic to delete.
@param  string $key  The stat key to use
@return bool   True if successful, false if not.
Delete a statistic with the given name .