Remove checked-in .isolate files.

chrome/ct_skps.isolate

-# Copyright (c) 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.
-
-{
-  'conditions': [
-    ['OS=="linux"', {
-      'variables': {
-        'files': [
-          '../../skia/resources/',
-          '../../skia/out/<(CONFIGURATION)/<(TOOL_NAME)',
-          '../content/test/ct/run_ct_skps.py',
-          '../../skps/slave<(SLAVE_NUM)/',
-        ],
-        'command': [
-          'python',
-          '../content/test/ct/run_ct_skps.py',
-          '--slave_num', '<(SLAVE_NUM)',
-          '--tool', '<(TOOL_NAME)',
-          '--git_hash', '<(GIT_HASH)',
-          '--isolated_outdir', '${ISOLATED_OUTDIR}',
-          '--configuration', '<(CONFIGURATION)',
-          '--builder', '<(BUILDER)',
-        ],
-      },
-    }],
-  ]
-}