Remove the Syzygy optimization alternative from GYP configs.

chrome/chrome_dll_syzygy.gypi

-# Copyright (c) 2011 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.
-{
-  'variables': {
-    'optimize_with_syzygy%': 0,
-  },
-  'conditions': [
-    ['OS=="win" and optimize_with_syzygy==1', {
-      # Optimize the initial chrome DLL file, placing the optimized
-      # output and corresponding PDB file into the product directory.
-      # If fastbuild!=0 then no PDB files are generated by the build
-      # and the syzygy optimizations cannot run (they use the PDB
-      # information to properly understand the DLLs contents), so
-      # syzygy optimization cannot be performed.
-      'targets': [
-        {
-          'target_name': 'chrome_dll',
-          'type': 'none',
-          'sources' : [],
-          'dependencies': [
-            'chrome_dll_initial',
-            'chrome',
-          ],
-          'actions': [
-            {
-              'action_name': 'Optimize Chrome binaries with syzygy',
-              'msvs_cygwin_shell': 0,
-              'inputs': [
-                '<(PRODUCT_DIR)\\initial\\chrome.dll',
-                '<(PRODUCT_DIR)\\initial\\chrome_dll.pdb',
-              ],
-              'outputs': [
-                '<(PRODUCT_DIR)\\chrome.dll',
-                '<(PRODUCT_DIR)\\chrome_dll.pdb',
-              ],
-              'action': [
-                '<(DEPTH)\\third_party\\syzygy\\binaries\\optimize.bat',
-                '--verbose',
-                '--input-dir="<(PRODUCT_DIR)"',
-                '--input-dll="<(PRODUCT_DIR)\\initial\\chrome.dll"',
-                '--input-pdb="<(PRODUCT_DIR)\\initial\\chrome_dll.pdb"',
-                '--output-dir="<(INTERMEDIATE_DIR)\\optimized"',
-                '--copy-to="<(PRODUCT_DIR)"',
-              ],
-            },
-          ],
-        },
-      ],
-    }],
-  ],
-}