Delete all test isolate file.

mojo/mojo_public_bindings_unittests.isolate

Index: mojo/mojo_public_bindings_unittests.isolate
diff --git a/mojo/mojo_public_bindings_unittests.isolate b/mojo/mojo_public_bindings_unittests.isolate
deleted file mode 100644
index 846bf78b6d241985e5d23a3c38be16ce6c72601a..0000000000000000000000000000000000000000
--- a/mojo/mojo_public_bindings_unittests.isolate
+++ /dev/null
@@ -1,24 +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_public_bindings_unittests<(EXECUTABLE_SUFFIX)',
-          '--brave-new-test-launcher',
-          '--test-launcher-bot-mode',
-        ],
-        'files': [
-          '../testing/test_env.py',
-          'public/interfaces/bindings/tests/data/validation/',
-        ],
-      },
-    }],
-  ],
-}