GroupControl: Update outdated comment

Change I1819de0ba moved this functionality into DefaultRefFilter.

Change-Id: Iab58ceace4478a78da8a83cd0094d7c1f6662238
Signed-off-by: Edwin Kempin <ekempin@google.com>

java/com/google/gerrit/server/account/GroupControl.java

diff --git a/java/com/google/gerrit/server/account/GroupControl.java b/java/com/google/gerrit/server/account/GroupControl.java
index 36e68c4..64fd7c6 100644
--- a/java/com/google/gerrit/server/account/GroupControl.java
+++ b/java/com/google/gerrit/server/account/GroupControl.java
@@ -160,7 +160,7 @@
       return isOwner;
     }
 
-    // Keep this logic in sync with VisibleRefFilter#isOwner(...).
+    // Keep this logic in sync with DefaultRefFilter#isGroupOwner(...).
     if (group instanceof GroupDescription.Internal) {
       AccountGroup.UUID ownerUUID = ((GroupDescription.Internal) group).getOwnerGroupUUID();
       if (getUser().getEffectiveGroups().contains(ownerUUID)) {