Update from https://crrev.com/317530

testing/legion/examples/hello_world/host_test.isolate

Index: testing/legion/examples/hello_world/host_test.isolate
diff --git a/testing/legion/examples/hello_world/host_test.isolate b/testing/legion/examples/hello_world/host_test.isolate
deleted file mode 100644
index da4ee4e38d6cb323ac522e9ebe9249a2524b0155..0000000000000000000000000000000000000000
--- a/testing/legion/examples/hello_world/host_test.isolate
+++ /dev/null
@@ -1,22 +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': [
-    '../../legion.isolate',
-    'client_test.isolate'
-  ],
-  'conditions': [
-    ['multi_machine == 1', {
-      'variables': {
-        'command': [
-          'host_test.py',
-        ],
-        'files': [
-          'host_test.py',
-        ],
-      },
-    }],
-  ]
-}