Delete I420 encoder and decoder.

webrtc/modules/video_coding/codec_database.cc

Index: webrtc/modules/video_coding/codec_database.cc
diff --git a/webrtc/modules/video_coding/codec_database.cc b/webrtc/modules/video_coding/codec_database.cc
index a5a7c1ea999ed6996f2dd75dde1c2231c8ae98a7..59fca1fa0debcf51661384f438708b2d529ae396 100644
--- a/webrtc/modules/video_coding/codec_database.cc
+++ b/webrtc/modules/video_coding/codec_database.cc
@@ -16,7 +16,6 @@
 #include "webrtc/base/logging.h"
 #include "webrtc/engine_configurations.h"
 #include "webrtc/modules/video_coding/codecs/h264/include/h264.h"
-#include "webrtc/modules/video_coding/codecs/i420/include/i420.h"
 #include "webrtc/modules/video_coding/codecs/vp8/include/vp8.h"
 #include "webrtc/modules/video_coding/codecs/vp9/include/vp9.h"
 #include "webrtc/modules/video_coding/internal_defines.h"
@@ -165,21 +164,6 @@ void VCMCodecDataBase::Codec(VideoCodecType codec_type, VideoCodec* settings) {
       settings->codecSpecific.H264 = VideoEncoder::GetDefaultH264Settings();
       return;
     case kVideoCodecI420:
-      strncpy(settings->plName, "I420", 5);
-      settings->codecType = kVideoCodecI420;
-      // 96 to 127 dynamic payload types for video codecs.
-      settings->plType = kDefaultPayloadType;
-      // Bitrate needed for this size and framerate.
-      settings->startBitrate = 3 * VCM_DEFAULT_CODEC_WIDTH *
-                               VCM_DEFAULT_CODEC_HEIGHT * 8 *
-                               VCM_DEFAULT_FRAME_RATE / 1000 / 2;
-      settings->maxBitrate = settings->startBitrate;
-      settings->maxFramerate = VCM_DEFAULT_FRAME_RATE;
-      settings->width = VCM_DEFAULT_CODEC_WIDTH;
-      settings->height = VCM_DEFAULT_CODEC_HEIGHT;
-      settings->minBitrate = VCM_MIN_BITRATE;
-      settings->numberOfSimulcastStreams = 0;
-      return;
     case kVideoCodecRED:
     case kVideoCodecULPFEC:
     case kVideoCodecGeneric:
@@ -583,8 +567,6 @@ VCMGenericDecoder* VCMCodecDataBase::CreateDecoder(VideoCodecType type) const {
       return new VCMGenericDecoder(VP8Decoder::Create());
     case kVideoCodecVP9:
       return new VCMGenericDecoder(VP9Decoder::Create());
-    case kVideoCodecI420:
-      return new VCMGenericDecoder(new I420Decoder());
     case kVideoCodecH264:
       if (H264Decoder::IsSupported()) {
         return new VCMGenericDecoder(H264Decoder::Create());