git-cl: Stop using Change class from presubmit support.

Bug: 1042324
Change-Id: I72db082f086f69bf49256d0613c39dc92ae0a07f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2101471
Commit-Queue: Edward Lesmes <ehmaldonado@chromium.org>
Reviewed-by: Anthony Polito <apolito@google.com>
diff --git a/tests/git_cl_test.py b/tests/git_cl_test.py
index a75e814..9b3cdb0 100755
--- a/tests/git_cl_test.py
+++ b/tests/git_cl_test.py
@@ -840,15 +840,12 @@
         ]
 
     calls += [
-      ((['git', 'rev-parse', 'HEAD'],), '12345'),
-    ]
-
-    calls += [
       ((['git', 'diff', '--no-ext-diff', '--stat', '-l100000', '-C50'] +
          ([custom_cl_base] if custom_cl_base else
           [ancestor_revision, 'HEAD']),),
        '+dat'),
     ]
+
     return calls
 
   def _gerrit_upload_calls(self, description, reviewers, squash,
@@ -1595,7 +1592,7 @@
     actual = []
     for orig, reviewers, tbrs, _expected in data:
       obj = git_cl.ChangeDescription(orig)
-      obj.update_reviewers(reviewers, tbrs)
+      obj.update_reviewers(reviewers, tbrs, None, None, None)
       actual.append(obj.description)
     self.assertEqual(expected, actual)