Make integration tests a bit cleaner.

utils/tests/pub/update/hosted/update_removed_constraints_test.dart

Index: utils/tests/pub/update/hosted/update_removed_constraints_test.dart
diff --git a/utils/tests/pub/update/hosted/update_removed_constraints_test.dart b/utils/tests/pub/update/hosted/update_removed_constraints_test.dart
index 911fa34fb977ba2ff59b993361537236763635c6..06dadffd7ac3ac3938d6b096e3e5a1afa8e3a7a4 100644
--- a/utils/tests/pub/update/hosted/update_removed_constraints_test.dart
+++ b/utils/tests/pub/update/hosted/update_removed_constraints_test.dart
@@ -7,10 +7,9 @@ library pub_tests;
 import 'dart:io';
 
 import '../../test_pub.dart';
-import '../../../../../pkg/unittest/lib/unittest.dart';
 
 main() {
-  test("updates dependencies whose constraints have been removed", () {
+  integration("updates dependencies whose constraints have been removed", () {
     servePackages([
       package("foo", "1.0.0", [dependency("shared-dep")]),
       package("bar", "1.0.0", [dependency("shared-dep", "<2.0.0")]),
@@ -39,7 +38,5 @@ main() {
       "bar": null,
       "shared-dep": "2.0.0"
     }).scheduleValidate();
-
-    run();
   });
 }