Revert "Support Package Resolution Configuration files."

tests/compiler/dart2js/exit_code_test.dart

Index: tests/compiler/dart2js/exit_code_test.dart
diff --git a/tests/compiler/dart2js/exit_code_test.dart b/tests/compiler/dart2js/exit_code_test.dart
index f69a271fabf05e9a03cf24e83c874897df81997b..82473cb81cc03eb25c989dac6304402984196cba 100644
--- a/tests/compiler/dart2js/exit_code_test.dart
+++ b/tests/compiler/dart2js/exit_code_test.dart
@@ -34,13 +34,11 @@ class TestCompiler extends apiimpl.Compiler {
                 Uri packageRoot,
                 List<String> options,
                 Map<String, dynamic> environment,
-                Uri packageConfig,
-                api.PackagesDiscoveryProvider findPackages,
                 String this.testMarker,
                 String this.testType,
                 Function this.onTest)
       : super(inputProvider, outputProvider, handler, libraryRoot,
-              packageRoot, options, environment, packageConfig, findPackages) {
+              packageRoot, options, environment) {
     scanner = new TestScanner(this);
     resolver = new TestResolver(this, backend.constantCompilerTask);
     test('Compiler');
@@ -158,9 +156,7 @@ Future testExitCode(
         api.DiagnosticHandler handler,
         [List<String> options = const [],
          api.CompilerOutputProvider outputProvider,
-         Map<String, dynamic> environment = const {},
-         Uri packageConfig,
-         api.PackagesDiscoveryProvider findPackages]) {
+         Map<String, dynamic> environment = const {}]) {
       libraryRoot = Platform.script.resolve('../../../sdk/');
       outputProvider = NullSink.outputProvider;
       // Use this to silence the test when debugging:
@@ -172,8 +168,6 @@ Future testExitCode(
                                            packageRoot,
                                            options,
                                            environment,
-                                           packageConfig,
-                                           findPackages,
                                            marker,
                                            type,
                                            onTest);