Drop support for older Barback versions.

test/transformer/runs_one_third_party_transformer_on_another_test.dart

Index: test/transformer/runs_one_third_party_transformer_on_another_test.dart
diff --git a/test/transformer/runs_one_third_party_transformer_on_another_test.dart b/test/transformer/runs_one_third_party_transformer_on_another_test.dart
index 4b5977d095feeb35d3e7108aff88406a136ca053..46d0228526effd17a0871fe847490cafa4eee851 100644
--- a/test/transformer/runs_one_third_party_transformer_on_another_test.dart
+++ b/test/transformer/runs_one_third_party_transformer_on_another_test.dart
@@ -9,47 +9,45 @@ import '../test_pub.dart';
 import '../serve/utils.dart';
 
 main() {
-  withBarbackVersions("any", () {
-    integration("runs one third-party transformer on another", () {
-      d.dir("foo", [
-        d.pubspec({
-          "name": "foo",
-          "version": "1.0.0"
-        }),
-        d.dir("lib", [
-          d.file("transformer.dart", dartTransformer('foo')),
-        ])
-      ]).create();
+  integration("runs one third-party transformer on another", () {
+    d.dir("foo", [
+      d.pubspec({
+        "name": "foo",
+        "version": "1.0.0"
+      }),
+      d.dir("lib", [
+        d.file("transformer.dart", dartTransformer('foo')),
+      ])
+    ]).create();
 
-      d.dir("bar", [
-        d.pubspec({
-          "name": "bar",
-          "version": "1.0.0",
-          "transformers": ["foo/transformer"],
-          "dependencies": {"foo": {"path": "../foo"}}
-        }),
-        d.dir("lib", [
-          d.file("transformer.dart", dartTransformer('bar')),
-        ])
-      ]).create();
+    d.dir("bar", [
+      d.pubspec({
+        "name": "bar",
+        "version": "1.0.0",
+        "transformers": ["foo/transformer"],
+        "dependencies": {"foo": {"path": "../foo"}}
+      }),
+      d.dir("lib", [
+        d.file("transformer.dart", dartTransformer('bar')),
+      ])
+    ]).create();
 
-      d.dir(appPath, [
-        d.pubspec({
-          "name": "myapp",
-          "transformers": ["bar/transformer"],
-          "dependencies": {'bar': {'path': '../bar'}}
-        }),
-        d.dir("web", [
-          d.file("main.dart", 'const TOKEN = "main.dart";')
-        ])
-      ]).create();
+    d.dir(appPath, [
+      d.pubspec({
+        "name": "myapp",
+        "transformers": ["bar/transformer"],
+        "dependencies": {'bar': {'path': '../bar'}}
+      }),
+      d.dir("web", [
+        d.file("main.dart", 'const TOKEN = "main.dart";')
+      ])
+    ]).create();
 
-      createLockFile('myapp', sandbox: ['foo', 'bar'], pkg: ['barback']);
+    createLockFile('myapp', sandbox: ['foo', 'bar'], pkg: ['barback']);
 
-      pubServe();
-      requestShouldSucceed("main.dart",
-          'const TOKEN = "(main.dart, (bar, foo))";');
-      endPubServe();
-    });
+    pubServe();
+    requestShouldSucceed("main.dart",
+        'const TOKEN = "(main.dart, (bar, foo))";');
+    endPubServe();
   });
 }