Remove tab_capture_performance_tests isolate and _run target.

chrome/tab_capture_performance_tests.isolate

-# 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.
-{
-  'includes': [
-    'chrome.isolate',
-  ],
-  'conditions': [
-    ['OS=="android" or OS=="linux" or OS=="mac" or OS=="win"', {
-      'variables': {
-        'command': [
-          '<(PRODUCT_DIR)/performance_browser_tests<(EXECUTABLE_SUFFIX)',
-          # These arguments were copied from the GPU recipe at
-          # tools/build/scripts/slave/recipe_modules/gpu/api.py.
-          '--enable-gpu',
-          '--test-launcher-jobs=1',
-          '--test-launcher-print-test-stdio=always',
-          '--gtest_filter=TabCapturePerformanceTest*',
-        ],
-        'isolate_dependency_tracked': [
-          '<(PRODUCT_DIR)/performance_browser_tests<(EXECUTABLE_SUFFIX)',
-        ],
-        'isolate_dependency_untracked': [
-          'test/data/extensions/api_test/tab_capture/',
-        ],
-      },
-    }],
-  ],
-}