Remove dart2dart support from testing scripts and status files

dart.gyp

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'most',
       'type': 'none',
       'dependencies': [
@@ skipping 60 matching lines @@
       ],
     },
     {
       'target_name': 'analysis_server',
       'type': 'none',
       'dependencies': [
         'utils/analysis_server/analysis_server.gyp:analysis_server',
       ],
     },
     {
-      # This is the target that is built on the dart2dart bots.
-      # It must depend on anything that is required by dart2dart
-      # tests.
-      'target_name': 'dart2dart_bot',
-      'type': 'none',
-      'dependencies': [
-        'create_sdk',
-        'packages',
-      ],
-    },
-    {
-      # This is the target that is built on the dartc bots.
-      # It must depend on anything that is required by dartc
-      # tests.
-      'target_name': 'dartc_bot',
-      'type': 'none',
-      'dependencies': [
-        'create_sdk',
-        'packages',
-      ],
-    },
-    {
       # This is the target that is built on the dart2js build bots.
       # It must depend on anything that is required by the dart2js
       # test suites.
       'target_name': 'dart2js_bot',
       'type': 'none',
       'dependencies': [
         'create_sdk',
         'packages',
         'try',
       ],
@@ skipping 79 matching lines @@
     },
     {
       'target_name': 'try',
       'type': 'none',
       'dependencies': [
         'site/try/build_try.gyp:try_site',
       ],
     },
   ],
 }