chore: cleanup SDL2 definitions (#6467)

radio/src/audio.cpp

@@ -706,11 +706,6 @@ bool AudioQueue::isPlaying(uint8_t id)
 
 void AudioQueue::playTone(uint16_t freq, uint16_t len, uint16_t pause, uint8_t flags, int8_t freqIncr, int8_t fragmentVolume)
 {
-#if defined(SIMU) && !defined(SIMU_AUDIO)
-  #warning "NO audio"
-  return;
-#endif
-
   _audio_lock();
 
   freq = limit<uint16_t>(BEEP_MIN_FREQ, freq, BEEP_MAX_FREQ);
@@ -772,14 +767,6 @@ void AudioQueue::playFile(const char * filename, uint8_t flags, uint8_t id, int8
 
 void AudioQueue::stopPlay(uint8_t id)
 {
-#if defined(SIMU)
-  TRACE("stopPlay(id=%d)", id);
-#endif
-
-#if defined(SIMU) && !defined(SIMU_AUDIO)
-  return;
-#endif
-
   _audio_lock();
 
   fragmentsFifo.removePromptById(id);