KAFKA-18033: Remove flaky tag in ShareConsumerTest (#18995)

3 tests which were marked flaky in ShareConsumerTest do not have any
failure on trunk since the test was converted to use `ClusterTestExtensions`.

Reviewers: Sushant Mahajan <[email protected]>, Apoorv Mittal <[email protected]>, Andrew Schofield <[email protected]>

Author: ShivsundarR

Diff for: core/src/test/java/kafka/test/api/ShareConsumerTest.java

@@ -61,7 +61,6 @@
 import org.apache.kafka.common.test.api.ClusterConfigProperty;
 import org.apache.kafka.common.test.api.ClusterTest;
 import org.apache.kafka.common.test.api.ClusterTestDefaults;
-import org.apache.kafka.common.test.api.Flaky;
 import org.apache.kafka.common.test.api.Type;
 import org.apache.kafka.common.utils.Utils;
 import org.apache.kafka.coordinator.group.GroupConfig;
@@ -390,7 +389,6 @@ public void testAcknowledgementCommitCallbackOnClose() {
         }
     }
 
-    @Flaky("KAFKA-18033")
     @ClusterTest
     public void testAcknowledgementCommitCallbackInvalidRecordStateException() throws Exception {
         setup();
@@ -1079,7 +1077,6 @@ public void testMultipleConsumersInGroupSequentialConsumption() {
         }
     }
 
-    @Flaky("KAFKA-18033")
     @ClusterTest
     public void testMultipleConsumersInGroupConcurrentConsumption()
             throws InterruptedException, ExecutionException, TimeoutException {
@@ -2027,7 +2024,6 @@ public void testShareConsumerAfterCoordinatorMovement() throws Exception {
         }
     )
     @Timeout(150)
-    @Flaky("KAFKA-18665")
     public void testComplexShareConsumer() throws Exception {
         setup();
         String topicName = "multipart";