Revert of Add CreateWindowCapturer() and CreateScreenCapturer() in DesktopCapturer

webrtc/modules/desktop_capture/window_capturer_win.cc

Index: webrtc/modules/desktop_capture/window_capturer_win.cc
diff --git a/webrtc/modules/desktop_capture/window_capturer_win.cc b/webrtc/modules/desktop_capture/window_capturer_win.cc
index 101b17a17a8c5e0f05063551f3bccc4122d135a3..c43db7e6bb46894edccbe5d9430eeb2d8a01d3de 100644
--- a/webrtc/modules/desktop_capture/window_capturer_win.cc
+++ b/webrtc/modules/desktop_capture/window_capturer_win.cc
@@ -270,10 +270,4 @@
   return new WindowCapturerWin();
 }
 
-// static
-std::unique_ptr<DesktopCapturer> DesktopCapturer::CreateRawWindowCapturer(
-    const DesktopCaptureOptions& options) {
-  return std::unique_ptr<DesktopCapturer>(new WindowCapturerWin());
-}
-
 }  // namespace webrtc