Remove Windows-related GN build configuration

build/config/features.gni

Index: build/config/features.gni
diff --git a/build/config/features.gni b/build/config/features.gni
index b6e24cb107c215c73ed7141d1f06bc9a23b76796..ae752d518b69b8fbed6477a807f0a4dc7f90097a 100644
--- a/build/config/features.gni
+++ b/build/config/features.gni
@@ -21,7 +21,7 @@ if (is_android) {
 
 declare_args() {
   # Multicast DNS.
-  enable_mdns = is_win || is_linux
+  enable_mdns = is_linux
 
   enable_plugins = !is_android && !is_ios
 
@@ -71,7 +71,7 @@ declare_args() {
   # Android stores them separately on the Java side.
   enable_session_service = !is_android && !is_ios
 
-  enable_plugin_installation = is_win || is_mac
+  enable_plugin_installation = is_mac
 
   enable_app_list = !is_ios && !is_android
 
@@ -81,7 +81,7 @@ declare_args() {
 
   enable_google_now = !is_ios && !is_android
 
-  enable_one_click_signin = is_win || is_mac || (is_linux && !is_chromeos)
+  enable_one_click_signin = is_mac || (is_linux && !is_chromeos)
 
   enable_remoting = !is_ios && !is_android
 
@@ -125,7 +125,7 @@ use_udev = is_linux && !is_fnl
 # Enable the spell checker.
 enable_spellcheck = !is_android
 
-enable_pepper_cdms = enable_plugins && (is_linux || is_mac || is_win)
+enable_pepper_cdms = enable_plugins && (is_linux || is_mac)
 
 # Enable basic printing support and UI.
 enable_basic_printing = !is_chromeos
@@ -165,13 +165,13 @@ win_pdf_metafile_for_printing = true
 
 # Whether we are using the rlz library or not.  Platforms like Android send
 # rlz codes for searches but do not use the library.
-enable_rlz = is_chrome_branded && (is_win || is_mac || is_ios || is_chromeos)
+enable_rlz = is_chrome_branded && (is_mac || is_ios || is_chromeos)
 
 enable_settings_app = enable_app_list && !is_chromeos
 
 enable_service_discovery = enable_mdns || is_mac
 
-enable_wifi_bootstrapping = is_win || is_mac
+enable_wifi_bootstrapping = is_mac
 
 # Image loader extension is enabled on ChromeOS only.
 enable_image_loader_extension = is_chromeos
@@ -196,4 +196,4 @@ use_gconf = is_linux && !is_chromeos
 enable_hangout_services_extension = false
 
 # Whether to back up data before sync.
-enable_pre_sync_backup = is_win || is_mac || (is_linux && !is_chromeos)
+enable_pre_sync_backup = is_mac || (is_linux && !is_chromeos)