Consolidate D3D11 constant buffers now that all shaders need a CSC constant buffer

app/shaders/d3d11_yuv444_pixel_end.hlsli

@@ -1,7 +1,6 @@
 min16float4 main(ShaderInput input) : SV_TARGET
 {
-    // Clamp the texcoords to avoid sampling the row of texels adjacent to the alignment padding
-    min16float3 yuv = swizzle(videoTex.Sample(theSampler, min(input.tex, chromaTexMax.rg)));
+    min16float3 yuv = swizzle(videoTex.Sample(theSampler, input.tex));
 
     // Subtract the YUV offset for limited vs full range
     yuv -= offsets;