[fix][client][branch-3.0] Fix cherry-pick issue in f6166c7

(cherry picked from commit 0776b37)

Author: lhotari

pulsar-client/src/main/java/org/apache/pulsar/client/impl/ConsumerImpl.java

@@ -19,7 +19,6 @@
 package org.apache.pulsar.client.impl;
 
 import static com.google.common.base.Preconditions.checkArgument;
-import static com.google.common.base.Preconditions.checkState;
 import static org.apache.pulsar.common.protocol.Commands.DEFAULT_CONSUMER_EPOCH;
 import static org.apache.pulsar.common.protocol.Commands.hasChecksum;
 import static org.apache.pulsar.common.protocol.Commands.serializeWithSize;