Remove last _logResolution reference.

runtime/bin/builtin.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library builtin;
 import 'dart:io';
 import 'dart:async';
 import 'dart:convert';
 // import 'root_library'; happens here from C Code
 
@@ skipping 289 matching lines @@
   switch (uri.scheme) {
     case '':
     case 'file':
     case 'http':
       return uri;
     case 'package':
       return _resolvePackageUri(uri);
     default:
       // Only handling file, http, and package URIs
       // in standalone binary.
-      _logResolution('# Unknown scheme (${uri.scheme}) in $uri.');
+      if (_logBuiltin) {
+        _print('# Unknown scheme (${uri.scheme}) in $uri.');
+      }
       throw 'Not a known scheme: $uri';
   }
 }
 
 
 // Asynchronously loads script data through a http or file uri.
 _loadDataAsync(int tag, String uri, String libraryUri) {
   if (tag == null) {
     uri = _resolveScriptUri(uri);
   }
@@ skipping 57 matching lines @@
     filename = '$name.dll';
   } else {
     if (_logBuiltin) {
       _print('Native extensions not supported on ${Platform.operatingSystem}');
     }
     throw 'Native extensions not supported on ${Platform.operatingSystem}';
   }
 
   return [path, filename, name];
 }