Remove the HttpRequest.queryParameters getter

sdk/lib/io/http_impl.dart

Index: sdk/lib/io/http_impl.dart
diff --git a/sdk/lib/io/http_impl.dart b/sdk/lib/io/http_impl.dart
index b27441b7aa87983eef6b4ae6f22743a5d15de755..8cfb2a3c1cc5f7ffec5f2fe1deb2df9709a2fcc5 100644
--- a/sdk/lib/io/http_impl.dart
+++ b/sdk/lib/io/http_impl.dart
@@ -78,9 +78,6 @@ abstract class _HttpInboundMessage extends Stream<List<int>> {
 class _HttpRequest extends _HttpInboundMessage implements HttpRequest {
   final HttpResponse response;
 
-  // Lazy initialized parsed query parameters.
-  Map<String, String> _queryParameters;
-
   final _HttpServer _httpServer;
 
   final _HttpConnection _httpConnection;
@@ -119,13 +116,6 @@ class _HttpRequest extends _HttpInboundMessage implements HttpRequest {
                             cancelOnError: cancelOnError);
   }
 
-  Map<String, String> get queryParameters {
-    if (_queryParameters == null) {
-      _queryParameters = _HttpUtils.splitQueryString(uri.query);
-    }
-    return _queryParameters;
-  }
-
   Uri get uri => _incoming.uri;
 
   String get method => _incoming.method;