Don't implicitly run "pub get".

test/barback/directory_args_test.dart

Index: test/barback/directory_args_test.dart
diff --git a/test/barback/directory_args_test.dart b/test/barback/directory_args_test.dart
index 64e8b8660fe830f85d2c386933d3c6e252df81b6..adcf90202d625b735874d3a3096178dd142ceb65 100644
--- a/test/barback/directory_args_test.dart
+++ b/test/barback/directory_args_test.dart
@@ -17,6 +17,8 @@ main() {
       d.dir('test', [d.file('file.txt', 'test')]),
       d.dir('web', [d.file('file.txt', 'web')])
     ]).create();
+
+    pubGet();
   });
 
   integration("builds only the given directories", () {
@@ -38,7 +40,7 @@ main() {
   });
 
   integration("serves only the given directories", () {
-    pubServe(args: ["foo", "bar"], shouldGetFirst: true);
+    pubServe(args: ["foo", "bar"]);
 
     requestShouldSucceed("file.txt", "bar", root: "bar");
     requestShouldSucceed("file.txt", "foo", root: "foo");