mpv: Drop gpu-hq profile for now

This setting causes some videos to experience lagginess on my iGPU. In
the future it may be useful to enable the new profile "high-quality" if
I have a dedicated GPU.

Note that in addition to setting the profile to high-quality, it's also
possible to use "vo=gpu-next".

See: mpv-player/mpv@703f158

home/mpv.nix

@@ -5,9 +5,6 @@
     enable = true;
 
     config = {
-      profile = "gpu-hq";
-      scale = "ewa_lanczossharp";
-      cscale = "ewa_lanczossharp";
       video-sync = "display-resample";
       interpolation = true;
       tscale = "oversample";