Remove duplicate ref update commands for new change

In ReceiveCommits, the ref updates are handled together in a
BatchRefUpdate(batch.addCommand(create.cmd)), no need to add the
ReceiveCommand into the ChangeInserter.

Change-Id: Ic888248f1fec27a5f9d84afc85ac035eecfa6607

gerrit-server/src/main/java/com/google/gerrit/server/git/ReceiveCommits.java

@@ -2012,7 +2012,6 @@ public class ReceiveCommits {
       }
       cmd = new ReceiveCommand(ObjectId.zeroId(), commit,
           ins.getPatchSetId().toRefName());
-      ins.setUpdateRefCommand(cmd);
       if (rp.getPushCertificate() != null) {
         ins.setPushCertificate(rp.getPushCertificate().toTextWithSignature());
       }
@@ -2051,7 +2050,7 @@ public class ReceiveCommits {
             .setNotify(magicBranch.notify)
             .setRequestScopePropagator(requestScopePropagator)
             .setSendMail(true)
-            .setUpdateRef(true));
+            .setUpdateRef(false));
         if (!magicBranch.hashtags.isEmpty()) {
           bu.addOp(
               changeId,