Revert "Use native async/await support in pub."

sdk/lib/_internal/pub_generated/test/global/binstubs/reactivate_removes_old_executables_test.dart

Index: sdk/lib/_internal/pub_generated/test/global/binstubs/reactivate_removes_old_executables_test.dart
diff --git a/sdk/lib/_internal/pub/test/global/binstubs/reactivate_removes_old_executables_test.dart b/sdk/lib/_internal/pub_generated/test/global/binstubs/reactivate_removes_old_executables_test.dart
similarity index 61%
copy from sdk/lib/_internal/pub/test/global/binstubs/reactivate_removes_old_executables_test.dart
copy to sdk/lib/_internal/pub_generated/test/global/binstubs/reactivate_removes_old_executables_test.dart
index bf1365c3fccad330cc784eb1b08d5a2a94095152..e6cf443eef266e8c15ffcaee417d21e191f3c30d 100644
--- a/sdk/lib/_internal/pub/test/global/binstubs/reactivate_removes_old_executables_test.dart
+++ b/sdk/lib/_internal/pub_generated/test/global/binstubs/reactivate_removes_old_executables_test.dart
@@ -10,39 +10,38 @@ import '../../test_pub.dart';
 main() {
   initConfig();
   integration("removes previous binstubs when reactivating a package", () {
-    d.dir("foo", [
-      d.pubspec({
+    d.dir("foo", [d.pubspec({
         "name": "foo",
         "executables": {
           "one": null,
           "two": null
         }
       }),
-      d.dir("bin", [
-        d.file("one.dart", "main() => print('ok');"),
-        d.file("two.dart", "main() => print('ok');")
-      ])
-    ]).create();
+          d.dir(
+              "bin",
+              [
+                  d.file("one.dart", "main() => print('ok');"),
+                  d.file("two.dart", "main() => print('ok');")])]).create();
 
     schedulePub(args: ["global", "activate", "--source", "path", "../foo"]);
 
-    d.dir("foo", [
-      d.pubspec({
+    d.dir("foo", [d.pubspec({
         "name": "foo",
         "executables": {
           // Remove "one".
           "two": null
         }
-      }),
-    ]).create();
+      }),]).create();
 
     schedulePub(args: ["global", "activate", "--source", "path", "../foo"]);
 
-    d.dir(cachePath, [
-      d.dir("bin", [
-        d.nothing(binStubName("one")),
-        d.matcherFile(binStubName("two"), contains("two"))
-      ])
-    ]).validate();
+    d.dir(
+        cachePath,
+        [
+            d.dir(
+                "bin",
+                [
+                    d.nothing(binStubName("one")),
+                    d.matcherFile(binStubName("two"), contains("two"))])]).validate();
   });
 }