Fix merge issue for ForwardedIndexGroupHandlerTest class

Fix following compilation error types:
* Duplicate methods, for example:
ForwardedIndexGroupHandlerTest.java:148: error: method
shouldChangeIndexEventWheNotUpToDate() is already defined in class
ForwardedIndexGroupHandlerTest
public void shouldChangeIndexEventWheNotUpToDate() throws IOException
* Issue with instantiating UUID objects, for example:
ForwardedIndexGroupHandlerTest.java:151: error: UUID is abstract;
cannot be instantiated

Change-Id: I957b3d0b2f9f7b7b466a9f0e4f0b6f41a00cd47f

src/test/java/com/googlesource/gerrit/plugins/multisite/forwarder/ForwardedIndexGroupHandlerTest.java

diff --git a/src/test/java/com/googlesource/gerrit/plugins/multisite/forwarder/ForwardedIndexGroupHandlerTest.java b/src/test/java/com/googlesource/gerrit/plugins/multisite/forwarder/ForwardedIndexGroupHandlerTest.java
index 24cbbc2..982ac52 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/multisite/forwarder/ForwardedIndexGroupHandlerTest.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/multisite/forwarder/ForwardedIndexGroupHandlerTest.java
@@ -143,28 +143,4 @@
   private Optional<GroupIndexEvent> groupIndexEvent(String uuid) {
     return Optional.of(new GroupIndexEvent(uuid, null));
   }
-
-  @Test
-  public void shouldChangeIndexEventWheNotUpToDate() throws IOException {
-    ForwardedIndexGroupHandler groupHandlerWithOutdatedEvent = groupHandler(false);
-    groupHandlerWithOutdatedEvent.index(uuid, Operation.INDEX, groupIndexEvent(uuid));
-    verify(indexerMock).index(new AccountGroup.UUID(uuid));
-  }
-
-  @Test
-  public void shouldRescheduleGroupIndexingWhenItIsNotUpToDate() throws IOException {
-    ForwardedIndexGroupHandler groupHandlerWithOutdatedEvent = groupHandler(false);
-    groupHandlerWithOutdatedEvent.index(uuid, Operation.INDEX, groupIndexEvent(uuid));
-    verify(indexExecutorMock)
-        .schedule(any(Runnable.class), eq(new Long(RETRY_INTERVAL)), eq(TimeUnit.MILLISECONDS));
-  }
-
-  private ForwardedIndexGroupHandler groupHandler(boolean checkIsUpToDate) {
-    return new ForwardedIndexGroupHandler(
-        indexerMock, config, new TestGroupChecker(checkIsUpToDate), indexExecutorMock);
-  }
-
-  private Optional<GroupIndexEvent> groupIndexEvent(String uuid) {
-    return Optional.of(new GroupIndexEvent(uuid, null));
-  }
 }