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

webrtc/modules/desktop_capture/screen_capturer_x11.cc

Index: webrtc/modules/desktop_capture/screen_capturer_x11.cc
diff --git a/webrtc/modules/desktop_capture/screen_capturer_x11.cc b/webrtc/modules/desktop_capture/screen_capturer_x11.cc
index fb8446ea4111c2f31d93e287f58cd8285a5f4d91..34653ec362adebe7d2501a7319bba287b7fd17d2 100644
--- a/webrtc/modules/desktop_capture/screen_capturer_x11.cc
+++ b/webrtc/modules/desktop_capture/screen_capturer_x11.cc
@@ -424,18 +424,4 @@
   return capturer.release();
 }
 
-// static
-std::unique_ptr<DesktopCapturer> DesktopCapturer::CreateRawScreenCapturer(
-    const DesktopCaptureOptions& options) {
-  if (!options.x_display())
-    return nullptr;
-
-  std::unique_ptr<ScreenCapturer> capturer(new ScreenCapturerLinux());
-  if (!static_cast<ScreenCapturerLinux*>(capturer.get())->Init(options)) {
-    return nullptr;
-  }
-
-  return capturer;
-}
-
 }  // namespace webrtc