Don't "shrink" internal upscaled buffers with a smaller virtual width…

…/height

while this did "work", and mimicked other emulators handling internal upscaling, it was a hack, and ends up causing issue with lua padding. it is also more unneeded now that #4029 (makes the UX of a sudden "large window" more managable) and #4011 (allowing for mimicking the frozen smaller window state) are merged

resolves #4039

src/BizHawk.Emulation.Cores/Consoles/Nintendo/3DS/Encore.IEmulator.cs

@@ -53,7 +53,6 @@ public bool FrameAdvance(IController controller, bool render, bool renderSound =
 
 		private void OnVideoRefresh()
 		{
-			_core.Encore_GetVideoVirtualDimensions(_context, out _encoreVideoProvider.VW, out _encoreVideoProvider.VH);
 			_core.Encore_GetVideoBufferDimensions(_context, out _encoreVideoProvider.BW, out _encoreVideoProvider.BH);
 			_encoreVideoProvider.VideoDirty = true;
 

src/BizHawk.Emulation.Cores/Consoles/Nintendo/3DS/Encore.IVideoProvider.cs

@@ -4,8 +4,6 @@ namespace BizHawk.Emulation.Cores.Consoles.Nintendo.N3DS
 {
 	public class EncoreVideoProvider : IVideoProvider
 	{
-		internal int VW = 400;
-		internal int VH = 480;
 		internal int BW = 400;
 		internal int BH = 480;
 		internal bool VideoDirty;
@@ -20,8 +18,8 @@ public EncoreVideoProvider(LibEncore core, IntPtr context)
 		}
 
 		// ReSharper disable ConvertToAutoPropertyWhenPossible
-		public int VirtualWidth => VW;
-		public int VirtualHeight => VH;
+		public int VirtualWidth => BW;
+		public int VirtualHeight => BH;
 		public int BufferWidth => BW;
 		public int BufferHeight => BH;
 		public int VsyncNumerator => 268111856;

src/BizHawk.Emulation.Cores/Consoles/Nintendo/NDS/MelonDS.IGLTextureProvider.cs

@@ -33,8 +33,8 @@ public int[] GetVideoBuffer()
 			return vb;
 		}
 
-		public int VirtualWidth { get; internal set; }
-		public int VirtualHeight { get; internal set; }
+		public int VirtualWidth => _vp.BufferWidth;
+		public int VirtualHeight => _vp.BufferHeight;
 		public int BufferWidth => _vp.BufferWidth;
 		public int BufferHeight => _vp.BufferHeight;
 		public int VsyncNumerator => _vp.VsyncNumerator;

src/BizHawk.Emulation.Cores/Consoles/Nintendo/NDS/MelonDS.ISettable.cs

@@ -474,12 +474,10 @@ private void RefreshScreenSettings(NDSSettings settings)
 			};
 
 			_openGLProvider.ActivateGLContext(_glContext); // SetScreenSettings will re-present the frame, so needs OpenGL context active
-			_core.SetScreenSettings(_console, ref screenSettings, out var w , out var h, out var vw, out var vh);
+			_core.SetScreenSettings(_console, ref screenSettings, out var w , out var h, out _, out _);
 
 			BufferWidth = w;
 			BufferHeight = h;
-			_glTextureProvider.VirtualWidth = vw;
-			_glTextureProvider.VirtualHeight = vh;
 			_glTextureProvider.VideoDirty = true;
 		}