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

sdk/lib/_internal/pub_generated/test/get/path/no_pubspec_test.dart

Index: sdk/lib/_internal/pub_generated/test/get/path/no_pubspec_test.dart
diff --git a/sdk/lib/_internal/pub/test/get/path/no_pubspec_test.dart b/sdk/lib/_internal/pub_generated/test/get/path/no_pubspec_test.dart
similarity index 69%
copy from sdk/lib/_internal/pub/test/get/path/no_pubspec_test.dart
copy to sdk/lib/_internal/pub_generated/test/get/path/no_pubspec_test.dart
index 0d858c0c377a17fe1ccd660f73c4cd72f8fd7e05..5e0ae1e6fad0f65afb0734d4b62b6d2222702e93 100644
--- a/sdk/lib/_internal/pub/test/get/path/no_pubspec_test.dart
+++ b/sdk/lib/_internal/pub_generated/test/get/path/no_pubspec_test.dart
@@ -14,13 +14,14 @@ main() {
     d.dir('foo').create();
     var fooPath = path.join(sandboxDir, "foo");
 
-    d.dir(appPath, [
-      d.appPubspec({
-        "foo": {"path": fooPath}
-      })
-    ]).create();
+    d.dir(appPath, [d.appPubspec({
+        "foo": {
+          "path": fooPath
+        }
+      })]).create();
 
-    pubGet(error: new RegExp(r'Could not find a file named "pubspec.yaml" '
-        r'in "[^\n]*"\.'));
+    pubGet(
+        error: new RegExp(
+            r'Could not find a file named "pubspec.yaml" ' r'in "[^\n]*"\.'));
   });
-}
+}