Remove link_chrome_on_windows GN flag.

build/config/BUILDCONFIG.gn

 # Copyright (c) 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.
 
 # =============================================================================
 # BUILD FLAGS
 # =============================================================================
 #
 # This block lists input arguments to the build, along with their default
 # values. GN requires listing them explicitly so it can validate input and have
@@ skipping 95 matching lines @@
 
   # Compile for Thread Sanitizer to find threading bugs.
   is_tsan = false
 
   if (current_os == "chromeos") {
     # Allows the target toolchain to be injected as arguments. This is needed
     # to support the CrOS build system which supports per-build-configuration
     # toolchains.
     cros_use_custom_toolchain = false
   }
-
-  # TODO(brettw) remove this flag (and therefore enable linking all targets) on
-  # Windows when we have sufficient bot capacity. In the meantime, you can
-  # enable linking for local compiles.
-  link_chrome_on_windows = true
 }
 
 # TODO(dpranke): Remove these asserts when os and cpu_arch are removed.
 assert(current_cpu == cpu_arch)
 assert(current_os == os)
 
 # =============================================================================
 # OS DEFINITIONS
 # =============================================================================
 #
@@ skipping 625 matching lines @@
       }
       if (defined(invoker.testonly)) {
         testonly = invoker.testonly
       }
       if (defined(invoker.visibility)) {
         visibility = invoker.visibility
       }
     }
   }
 }