Delete all test isolate file.

components/nacl_loader_unittests.isolate

Index: components/nacl_loader_unittests.isolate
diff --git a/components/nacl_loader_unittests.isolate b/components/nacl_loader_unittests.isolate
deleted file mode 100644
index 4a6fe8c13104d80dcb981d58459e803939eec671..0000000000000000000000000000000000000000
--- a/components/nacl_loader_unittests.isolate
+++ /dev/null
@@ -1,18 +0,0 @@
-# Copyright 2014 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=="linux" or OS=="mac" or OS=="win"', {
-      'variables': {
-        'command': [
-          '<(PRODUCT_DIR)/nacl_loader_unittests<(EXECUTABLE_SUFFIX)',
-        ],
-      },
-    }],
-  ],
-  'includes': [
-    # This is needed because of base/ dependencies on icudtl.dat.
-    '../base/base.isolate',
-  ],
-}