Simplify PatchSetInserter.Factory signature

Pass a ChangeControl instead of a RefControl, from which the change
and user can be gotten.

Change-Id: I95e682bdda69071237ad878586f06b10e4266146

gerrit-server/src/main/java/com/google/gerrit/server/ChangeUtil.java

@@ -416,7 +416,7 @@ public class ChangeUtil {
             + ": Commit message was updated";
 
         change = patchSetInserterFactory
-            .create(git, revWalk, ctl.getRefControl(), user(), change, newCommit)
+            .create(git, revWalk, ctl, newCommit)
             .setPatchSet(newPatchSet)
             .setMessage(msg)
             .setCopyLabels(true)