Delete all test isolate file.

services/shell/mojo_shell_unittests.isolate

Index: services/shell/mojo_shell_unittests.isolate
diff --git a/services/shell/mojo_shell_unittests.isolate b/services/shell/mojo_shell_unittests.isolate
deleted file mode 100644
index 4259f2ba925971f4dc8f34564a1da7d3116e8222..0000000000000000000000000000000000000000
--- a/services/shell/mojo_shell_unittests.isolate
+++ /dev/null
@@ -1,23 +0,0 @@
-# Copyright 2015 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-{
-  'includes': [
-    '../../base/base.isolate',
-  ],
-  'conditions': [
-    ['OS=="win" or OS=="mac" or OS=="linux"', {
-      'variables': {
-        'command': [
-          '../../testing/test_env.py',
-          '<(PRODUCT_DIR)/mojo_shell_unittests<(EXECUTABLE_SUFFIX)',
-          '--brave-new-test-launcher',
-          '--test-launcher-bot-mode',
-        ],
-        'files': [
-          '../../testing/test_env.py',
-        ],
-      },
-    }],
-  ],
-}