Revert of [swarming] Isolate v8 testing.

test/mjsunit/mjsunit.isolate

Index: test/mjsunit/mjsunit.isolate
diff --git a/test/mjsunit/mjsunit.isolate b/test/mjsunit/mjsunit.isolate
deleted file mode 100644
index 18b73c2a14c10ea470879483fa5c21c54d626498..0000000000000000000000000000000000000000
--- a/test/mjsunit/mjsunit.isolate
+++ /dev/null
@@ -1,23 +0,0 @@
-# Copyright 2015 the V8 project authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-{
-  'variables': {
-    'files': [
-      './',
-      '../../tools/codemap.js',
-      '../../tools/consarray.js',
-      '../../tools/csvparser.js',
-      '../../tools/logreader.js',
-      '../../tools/profile.js',
-      '../../tools/profile_view.js',
-      '../../tools/profviz/composer.js',
-      '../../tools/splaytree.js',
-      '../../tools/tickprocessor.js'
-    ],
-  },
-  'includes': [
-    '../../src/d8.isolate',
-    '../../tools/testrunner/testrunner.isolate',
-  ],
-}