test rename overhaul: step 2 css tests.

tools/test.dart

Index: tools/test.dart
diff --git a/tools/test.dart b/tools/test.dart
index 543a493f8dcd8493bbd3d7734d3e06415a315646..8a448e0d14baec2e9a2135f1f3b559c0bd7f4043 100755
--- a/tools/test.dart
+++ b/tools/test.dart
@@ -45,7 +45,6 @@
 #import("../frog/tests/leg_only/test_config.dart");
 #import("../frog/tests/native/test_config.dart");
 #import("../frog/tests/await/test_config.dart");
-#import("../utils/tests/css/test_config.dart");
 #import("../utils/tests/import_mapper/test_config.dart");
 
 /**
@@ -55,6 +54,7 @@
  * basically add the directory here and you're done.)
 */
 final TEST_SUITE_DIRECTORIES = const [
+  'utils/tests/css',
   'utils/tests/peg',
   'utils/tests/pub',
 ];
@@ -139,9 +139,6 @@ main() {
     if (conf['compiler'] == 'dartc' && selectors.containsKey('dartc')) {
       queue.addTestSuite(new JUnitDartcTestSuite(conf));
     }
-    if (selectors.containsKey('css')) {
-      queue.addTestSuite(new CssTestSuite(conf));
-    }
     if (selectors.containsKey('import_mapper')) {
       queue.addTestSuite(new ImportMapperTestSuite(conf));
     }