message: Remove iSAC from NetEQ tests
  Cr-Commit-Position: refs/heads/main@{#38708}
diff: @@ -311,10 +311,6 @@ NetEqTest::DecoderMap NetEqTest::StandardDecoderMap() {
  {8, SdpAudioFormat("pcma", 8000, 1)},
  #ifdef WEBRTC_CODEC_ILBC
  {102, SdpAudioFormat("ilbc", 8000, 1)},
  -#endif
  - {103, SdpAudioFormat("isac", 16000, 1)},
  -#if !defined(WEBRTC_ANDROID)
  - {104, SdpAudioFormat("isac", 32000, 1)},
  #endif
  #ifdef WEBRTC_CODEC_OPUS
  {111, SdpAudioFormat("opus", 48000, 2)},
  