Clean up the scanner directory

dart/lib/compiler/implementation/scanner/motile_d8.dart

Index: dart/lib/compiler/implementation/scanner/motile_d8.dart
diff --git a/dart/lib/compiler/implementation/scanner/motile_d8.dart b/dart/lib/compiler/implementation/scanner/motile_d8.dart
deleted file mode 100644
index 5862e93eb775a5854ae2b5d29708689b8a23b02e..0000000000000000000000000000000000000000
--- a/dart/lib/compiler/implementation/scanner/motile_d8.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2011, 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('motile'); // aka parser'
-#import('scannerlib.dart');
-#import('scanner_implementation.dart');
-#import('../elements/elements.dart');
-#import('d8_scanner_bench.dart', prefix: 'd8');
-#import('scanner_bench.dart');
-#source('parser_bench.dart');
-
-class BaseParserBench extends d8.D8ScannerBench {
-}