Delete all test isolate file.

chrome/install_static_unittests.isolate

Index: chrome/install_static_unittests.isolate
diff --git a/chrome/install_static_unittests.isolate b/chrome/install_static_unittests.isolate
deleted file mode 100644
index a2a7b82658f6ea51b5886df6da3fae49f350db39..0000000000000000000000000000000000000000
--- a/chrome/install_static_unittests.isolate
+++ /dev/null
@@ -1,17 +0,0 @@
-# Copyright 2016 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=="win"', {
-      'variables': {
-        'command': [
-          '<(PRODUCT_DIR)/install_static_unittests<(EXECUTABLE_SUFFIX)',
-         ],
-       },
-     }],
-   ],
-   'includes': [
-     '../base/base.isolate',
-   ],
-}