compilation fixed

src/main/java/org/redisson/connection/SentinelConnectionManager.java

@@ -30,7 +30,6 @@ import org.redisson.client.RedisClient;
 import org.redisson.client.RedisConnection;
 import org.redisson.client.RedisConnectionException;
 import org.redisson.client.RedisPubSubConnection;
-import org.redisson.client.codec.Codec;
 import org.redisson.client.codec.StringCodec;
 import org.redisson.client.protocol.RedisCommands;
 import org.redisson.client.protocol.pubsub.PubSubType;
@@ -105,7 +104,6 @@ public class SentinelConnectionManager extends MasterSlaveConnectionManager {
                         disconnectedSlaves.add(host);
                     }
                 }
-                }
                 break;
             } catch (RedisConnectionException e) {
                 log.warn("can't connect to sentinel", e);