Delete or update left-over ASSERT use and comments.

webrtc/media/engine/webrtcvoiceengine.cc

Index: webrtc/media/engine/webrtcvoiceengine.cc
diff --git a/webrtc/media/engine/webrtcvoiceengine.cc b/webrtc/media/engine/webrtcvoiceengine.cc
index e6fa12e45e601280fa657fa44d07fb18907af8aa..9c9b781bc79a43626b6f97f905d1edb0f864c57c 100644
--- a/webrtc/media/engine/webrtcvoiceengine.cc
+++ b/webrtc/media/engine/webrtcvoiceengine.cc
@@ -496,7 +496,7 @@ class WebRtcVoiceCodecs final {
   // codec.
   static void MaybeFixupG722(webrtc::CodecInst* voe_codec, int new_plfreq) {
     if (IsCodec(*voe_codec, kG722CodecName)) {
-      // If the ASSERT triggers, the codec definition in WebRTC VoiceEngine
+      // If the DCHECK triggers, the codec definition in WebRTC VoiceEngine
       // has changed, and this special case is no longer needed.
       RTC_DCHECK(voe_codec->plfreq != new_plfreq);
       voe_codec->plfreq = new_plfreq;