style: remove duplicate line in gn file

Co-authored-by: bill.shen <15865969+cucbin@users.noreply.github.com>

chromium_src/BUILD.gn

@@ -158,14 +158,12 @@ static_library("chrome") {
       "//chrome/browser/icon_loader_win.cc",
       "//chrome/browser/media/webrtc/window_icon_util_win.cc",
       "//chrome/browser/process_singleton_win.cc",
-      "//chrome/browser/ui/frame/window_frame_util.h",
       "//chrome/browser/win/chrome_process_finder.cc",
       "//chrome/browser/win/chrome_process_finder.h",
       "//chrome/browser/win/chrome_select_file_dialog_factory.cc",
       "//chrome/browser/win/chrome_select_file_dialog_factory.h",
       "//chrome/browser/win/titlebar_config.cc",
       "//chrome/browser/win/titlebar_config.h",
-      "//chrome/browser/win/titlebar_config.h",
       "//chrome/browser/win/util_win_service.cc",
       "//chrome/browser/win/util_win_service.h",
       "//chrome/child/v8_crashpad_support_win.cc",