Remove support for getters with parameters.

tests/compiler/dart2js/deprecated_features_test.dart

Index: tests/compiler/dart2js/deprecated_features_test.dart
diff --git a/tests/compiler/dart2js/deprecated_features_test.dart b/tests/compiler/dart2js/deprecated_features_test.dart
index 59d9b1263903e74c7b67242d8bf527c72369ecfe..9e39e7b9816be610ee15e30cab93355d747b7ebd 100644
--- a/tests/compiler/dart2js/deprecated_features_test.dart
+++ b/tests/compiler/dart2js/deprecated_features_test.dart
@@ -54,7 +54,7 @@ main() {
       // "message" is the expected message as a [String].  This is a
       // short-term solution and should eventually changed to include
       // a symbolic reference to a MessageKind.
-      "19<()>::${deprecatedMessage('getter parameters')}\n",
+      "",
       messages.toString());
 }
 
@@ -67,7 +67,6 @@ deprecatedMessage(feature) {
 const Map<String, String> TEST_SOURCE =
   const <String, String>{ '': """
 class Foo {
-  get x() => null;
 }
 
 main() {