Delete VideoCaptureCapability::codecType and related logic.

webrtc/media/engine/webrtcvideocapturer.cc

Index: webrtc/media/engine/webrtcvideocapturer.cc
diff --git a/webrtc/media/engine/webrtcvideocapturer.cc b/webrtc/media/engine/webrtcvideocapturer.cc
index d8419d2bd59f7a87c04372b9c43a4ec8310d9e26..5aac3f81acfdce2b4c05a479ee966b449e21c976 100644
--- a/webrtc/media/engine/webrtcvideocapturer.cc
+++ b/webrtc/media/engine/webrtcvideocapturer.cc
@@ -95,7 +95,6 @@ static bool FormatToCapability(const VideoFormat& format,
   cap->height = format.height;
   cap->maxFPS = VideoFormat::IntervalToFps(format.interval);
   cap->rawType = webrtc_type;
-  cap->codecType = webrtc::kVideoCodecUnknown;
   cap->interlaced = false;
   return true;
 }