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

sdk/lib/_internal/pub_generated/test/transformer/supports_a_transformer_that_doesnt_return_futures_test.dart

Index: sdk/lib/_internal/pub_generated/test/transformer/supports_a_transformer_that_doesnt_return_futures_test.dart
diff --git a/sdk/lib/_internal/pub/test/transformer/supports_a_transformer_that_doesnt_return_futures_test.dart b/sdk/lib/_internal/pub_generated/test/transformer/supports_a_transformer_that_doesnt_return_futures_test.dart
similarity index 84%
copy from sdk/lib/_internal/pub/test/transformer/supports_a_transformer_that_doesnt_return_futures_test.dart
copy to sdk/lib/_internal/pub_generated/test/transformer/supports_a_transformer_that_doesnt_return_futures_test.dart
index 0d67187c9c019d8f6dcec3e920f1e3c5d6c68ed3..4c14c5b8c48d7ab6544eea41109ea32873ce6274 100644
--- a/sdk/lib/_internal/pub/test/transformer/supports_a_transformer_that_doesnt_return_futures_test.dart
+++ b/sdk/lib/_internal/pub_generated/test/transformer/supports_a_transformer_that_doesnt_return_futures_test.dart
@@ -33,18 +33,12 @@ main() {
   initConfig();
   withBarbackVersions("any", () {
     integration("supports a transformer that doesn't return futures", () {
-      d.dir(appPath, [
-        d.pubspec({
+      d.dir(appPath, [d.pubspec({
           "name": "myapp",
           "transformers": ["myapp/src/transformer"]
         }),
-        d.dir("lib", [d.dir("src", [
-          d.file("transformer.dart", TRANSFORMER)
-        ])]),
-        d.dir("web", [
-          d.file("foo.txt", "foo")
-        ])
-      ]).create();
+            d.dir("lib", [d.dir("src", [d.file("transformer.dart", TRANSFORMER)])]),
+            d.dir("web", [d.file("foo.txt", "foo")])]).create();
 
       createLockFile('myapp', pkg: ['barback']);