Remove unused VideoCapturerSource::GetCurrentSupportedFormats().

media/capture/video_capturer_source.cc

Index: media/capture/video_capturer_source.cc
diff --git a/media/capture/video_capturer_source.cc b/media/capture/video_capturer_source.cc
index 7ff99155daf7899762170eb43f136cfa2e69c91b..bafdf4216fd9c91b170e6b81c8af5aa48ccc1609 100644
--- a/media/capture/video_capturer_source.cc
+++ b/media/capture/video_capturer_source.cc
@@ -13,12 +13,4 @@ namespace media {
 // to generate symbols across linking units.
 VideoCapturerSource::~VideoCapturerSource() {}
 
-void VideoCapturerSource::GetCurrentSupportedFormats(
-    int max_requested_width,
-    int max_requested_height,
-    double max_requested_frame_rate,
-    const VideoCaptureDeviceFormatsCB& callback) {
-  callback.Run(GetPreferredFormats());
-}
-
 }  // namespace media