Make integration tests a bit cleaner.

utils/tests/pub/update/git/do_not_update_if_unneeded_test.dart

Index: utils/tests/pub/update/git/do_not_update_if_unneeded_test.dart
diff --git a/utils/tests/pub/update/git/do_not_update_if_unneeded_test.dart b/utils/tests/pub/update/git/do_not_update_if_unneeded_test.dart
index 392540832963265142d9784c0b8f61e9c636c3c2..15fa3f9c30b16675d7d2f42075fe5757b99e1532 100644
--- a/utils/tests/pub/update/git/do_not_update_if_unneeded_test.dart
+++ b/utils/tests/pub/update/git/do_not_update_if_unneeded_test.dart
@@ -7,11 +7,10 @@ library pub_tests;
 import 'dart:io';
 
 import '../../test_pub.dart';
-import '../../../../../pkg/unittest/lib/unittest.dart';
 
 main() {
-  test("doesn't update one locked Git package's dependencies if it's not "
-      "necessary", () {
+  integration("doesn't update one locked Git package's dependencies if it's "
+      "not necessary", () {
     ensureGit();
 
     git('foo.git', [
@@ -59,7 +58,5 @@ main() {
         file('foo-dep.dart', 'main() => "foo-dep";')
       ]),
     ]).scheduleValidate();
-
-    run();
   });
 }