sdl_audio: Remove buffer samples hint.

[squidbus]

Remove the hint for buffer sample frames as this seems to not work right on some systems.

[C0rn3j]

I can still trigger the audio issues, but only extremely briefly and only with artificial load from stress when combined with compiling shaders.

That is to say, this PR fixes my issues in #2015.

[Render.Vulkan] <Info> vk_pipeline_cache.cpp:CompileModule:478: Compiling fs shader 0xd506a1 
[Render.Vulkan] <Info> vk_pipeline_cache.cpp:CompileModule:478: Compiling vs shader 0xf81310f4 
[Lib.AudioOut] <Warning> sdl_audio.cpp:Output:64: SDL audio queue backed up (131072 queued, 131072 threshold), clearing.
[Lib.AudioOut] <Warning> sdl_audio.cpp:Output:64: SDL audio queue backed up (131072 queued, 131072 threshold), clearing.
[Render.Vulkan] <Info> vk_pipeline_cache.cpp:CompileModule:478: Compiling vs shader 0x6a833138 (permutation)
[Render.Vulkan] <Info> vk_pipeline_cache.cpp:CompileModule:478: Compiling fs shader 0x2390c887 
[Render.Vulkan] <Info> vk_pipeline_cache.cpp:CompileModule:478: Compiling vs shader 0x97f2d384 (permutation)
[Render.Vulkan] <Info> vk_pipeline_cache.cpp:CompileModule:478: Compiling fs shader 0x6b42fc89 
[Render.Vulkan] <Info> vk_pipeline_cache.cpp:CompileModule:478: Compiling vs shader 0x8747a367 (permutation)
[Render.Vulkan] <Info> vk_pipeline_cache.cpp:CompileModule:478: Compiling fs shader 0x8d5387d9 
[Render.Vulkan] <Info> vk_pipeline_cache.cpp:CompileModule:478: Compiling fs shader 0x8aba0ecd 
[Render.Vulkan] <Info> vk_pipeline_cache.cpp:CompileModule:478: Compiling vs shader 0x7620368b 
[Lib.AudioOut] <Warning> sdl_audio.cpp:Output:64: SDL audio queue backed up (131072 queued, 131072 threshold), clearing.

[squidbus]

I can still trigger the audio issues, but only extremely briefly and only with artificial load from stress when combined with compiling shaders.

That is to say, this PR fixes my issues in #2015.

Thanks for confirming, yeah if the system is sufficiently stressed and the audio output can't keep up we don't have much of a choice to maintain proper pacing but to drop frames.

[NetQvist]

Can confirm that this also fixes the constant crackling noise whenever audio was being played if audio was routed through the Steelseries Sonar mixer in Windows.

[killstriker64]

I constantly get this error in Bloodborne CUSA03173. Every time it occurs, the game starts to lag and the sound begins to buzz. Maybe it is related to this PR so i posted this problem here. There is no such problem with 0.5.0.

[C0rn3j]

I think you're inverting the cause and effect.

The emulator can't keep up for some reason (CPU, VRAM, RAM, a bug, ...), so it fails to keep rendering the game and playing audio.

If you believe this PR is at fault, test both with the commit before it and the PR commit.