message: Remove deprecated version of RtpPacket::SetPadding that used to randomize padding
  was deprecated in
  Cr-Commit-Position: refs/heads/master@{#28266}
diff: #include "modules/rtp_rtcp/include/rtp_header_extension_map.h"
  #include "modules/rtp_rtcp/include/rtp_rtcp_defines.h"
  #include "rtc_base/copy_on_write_buffer.h"
  -#include "rtc_base/deprecation.h"
  namespace webrtc {
  -class Random;
  class RtpPacket {
  public:
  @@ -125,10 +123,6 @@ class RtpPacket {
  uint8_t* SetPayloadSize(size_t size_bytes);
  // Same as SetPayloadSize but doesn't guarantee to keep current payload.
  uint8_t* AllocatePayload(size_t size_bytes);
  - RTC_DEPRECATED
  - bool SetPadding(uint8_t size_bytes, Random* random) {
  - return SetPadding(size_bytes);
  - }
  bool SetPadding(size_t padding_size);
  