message: sdp: remove duplicate and shadowing variable
  Cr-Commit-Position: refs/heads/main@{#38908}
diff: @@ -451,7 +451,6 @@ RTCError ValidateBundledPayloadTypes(
  // identical codec configuration. This means that the codecs MUST share
  // the same media type, encoding name, clock rate, and any parameter
  // that can affect the codec configuration and packetization.
  - std::map<int, RtpCodecParameters> payload_to_codec_parameters;
  std::vector<const cricket::ContentGroup*> bundle_groups =
  description.GetGroupsByName(cricket::GROUP_TYPE_BUNDLE);
  for (const cricket::ContentGroup* bundle_group : bundle_groups) {
  