[SMALLFIX] Recover HelpCommandIntegrationTest

### What changes are proposed in this pull request?

HelpCommandIntegrationTest works now.

### Why are the changes needed?

Improve code quality.

### Does this PR introduce any user facing changes?

No.

			pr-link: #18293
			change-id: cid-ccb04b9ede68fae2342d6a25e443b85ccd8f990c

dora/tests/integration/src/test/java/alluxio/client/cli/fs/command/HelpCommandIntegrationTest.java

@@ -11,7 +11,6 @@
 
 package alluxio.client.cli.fs.command;
 
-import alluxio.annotation.dora.DoraTestTodoItem;
 import alluxio.cli.Command;
 import alluxio.cli.fs.FileSystemShellUtils;
 import alluxio.cli.fs.command.HelpCommand;
@@ -20,7 +19,6 @@
 import alluxio.conf.Configuration;
 
 import org.junit.Assert;
-import org.junit.Ignore;
 import org.junit.Test;
 
 import java.io.IOException;
@@ -33,9 +31,6 @@
 /**
  * Integration tests for help command.
  */
-@DoraTestTodoItem(action = DoraTestTodoItem.Action.REMOVE, owner = "jiacheng",
-    comment = "fix or remove this test")
-@Ignore
 public final class HelpCommandIntegrationTest extends AbstractFileSystemShellTest {
 
   /**