Delete breakpad_unittest.isolate (no longer needed)

breakpad/breakpad_unittests.isolate

Index: breakpad/breakpad_unittests.isolate
diff --git a/breakpad/breakpad_unittests.isolate b/breakpad/breakpad_unittests.isolate
deleted file mode 100644
index 24c16347d251f9c88653c491fde92d200ca70451..0000000000000000000000000000000000000000
--- a/breakpad/breakpad_unittests.isolate
+++ /dev/null
@@ -1,14 +0,0 @@
-# Copyright 2013 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.
-{
-  'conditions': [
-    ['OS=="android"', {
-      'variables': {
-        'files': [
-          '<(PRODUCT_DIR)/linux_dumper_unittest_helper',
-        ],
-      },
-    }],
-  ],
-}