Revert "aaudio: Set low-latency audio mode."

This reverts commit 1e016fd.

In order to use low latency mode, you need to set low latency callbacks. This has always been recommended and is apparently required on Android 15. SDL3 has these implemented correctly but SDL2 does not, so we should revert this for now.

Fixes libsdl-org#11376

src/audio/aaudio/SDL_aaudio.c

@@ -116,7 +116,6 @@ static int aaudio_OpenDevice(_THIS, const char *devname)
     }
 
     ctx.AAudioStreamBuilder_setErrorCallback(ctx.builder, aaudio_errorCallback, private);
-    ctx.AAudioStreamBuilder_setPerformanceMode(ctx.builder, AAUDIO_PERFORMANCE_MODE_LOW_LATENCY);
 
     LOGI("AAudio Try to open %u hz %u bit chan %u %s samples %u",
          this->spec.freq, SDL_AUDIO_BITSIZE(this->spec.format),
@@ -239,7 +238,6 @@ static int RebuildAAudioStream(SDL_AudioDevice *device)
     }
 
     ctx.AAudioStreamBuilder_setErrorCallback(ctx.builder, aaudio_errorCallback, hidden);
-    ctx.AAudioStreamBuilder_setPerformanceMode(ctx.builder, AAUDIO_PERFORMANCE_MODE_LOW_LATENCY);
 
     LOGI("AAudio Try to reopen %u hz %u bit chan %u %s samples %u",
          device->spec.freq, SDL_AUDIO_BITSIZE(device->spec.format),

src/audio/aaudio/SDL_aaudiofuncs.h

@@ -32,7 +32,7 @@ SDL_PROC(void, AAudioStreamBuilder_setFormat, (AAudioStreamBuilder * builder, aa
 SDL_PROC_UNUSED(void, AAudioStreamBuilder_setSharingMode, (AAudioStreamBuilder * builder, aaudio_sharing_mode_t sharingMode))
 SDL_PROC(void, AAudioStreamBuilder_setDirection, (AAudioStreamBuilder * builder, aaudio_direction_t direction))
 SDL_PROC_UNUSED(void, AAudioStreamBuilder_setBufferCapacityInFrames, (AAudioStreamBuilder * builder, int32_t numFrames))
-SDL_PROC(void, AAudioStreamBuilder_setPerformanceMode, (AAudioStreamBuilder * builder, aaudio_performance_mode_t mode))
+SDL_PROC_UNUSED(void, AAudioStreamBuilder_setPerformanceMode, (AAudioStreamBuilder * builder, aaudio_performance_mode_t mode))
 SDL_PROC_UNUSED(void, AAudioStreamBuilder_setUsage, (AAudioStreamBuilder * builder, aaudio_usage_t usage))                                         /* API 28 */
 SDL_PROC_UNUSED(void, AAudioStreamBuilder_setContentType, (AAudioStreamBuilder * builder, aaudio_content_type_t contentType))                      /* API 28 */
 SDL_PROC_UNUSED(void, AAudioStreamBuilder_setInputPreset, (AAudioStreamBuilder * builder, aaudio_input_preset_t inputPreset))                      /* API 28 */