Fix RedisHash.remove(). The snipped `m_db.getAsHash("test_hash").remove();` caused the following error at runtime: object.Exception@../../.dub/packages/vibe-d-0.8.2/vibe-d/redis/vibe/db/redis/redis.d(1370): ERR wrong number of arguments for 'hdel' command
Fix RedisHash.remove().
The snipped `m_db.getAsHash("test_hash").remove();` caused the following error at runtime:
object.Exception@../../.dub/packages/vibe-d-0.8.2/vibe-d/redis/vibe/db/redis/redis.d(1370): ERR wrong number of arguments for 'hdel' command

chalucha/vibe.d,rejectedsoftware/vibe.d,etcimon/vibe.d,gedaiu/vibe.d,etcimon/vibe.d,Geod24/vibe.d