remove some extraneous cruft in stock and slang conversion template

slang-conversion-template.glsl

@@ -24,9 +24,7 @@
 #endif
 
 COMPAT_ATTRIBUTE vec4 VertexCoord;
-COMPAT_ATTRIBUTE vec4 COLOR;
 COMPAT_ATTRIBUTE vec4 TexCoord;
-COMPAT_VARYING vec4 COL0;
 COMPAT_VARYING vec4 TEX0;
 // out variables go here as COMPAT_VARYING whatever
 
@@ -51,8 +49,8 @@ uniform COMPAT_PRECISION float WHATEVER;
 
 void main()
 {
-    gl_Position = MVPMatrix * VertexCoord;
-    TEX0.xy = TexCoord.xy;
+   gl_Position = MVPMatrix * VertexCoord;
+   TEX0.xy = TexCoord.xy;
 // Paste vertex contents here:
 }
 

stock.glsl

@@ -22,7 +22,6 @@ COMPAT_ATTRIBUTE vec4 TexCoord;
 COMPAT_VARYING vec4 COL0;
 COMPAT_VARYING vec4 TEX0;
 
-vec4 _oPosition1; 
 uniform mat4 MVPMatrix;
 uniform COMPAT_PRECISION int FrameDirection;
 uniform COMPAT_PRECISION int FrameCount;
@@ -32,13 +31,7 @@ uniform COMPAT_PRECISION vec2 InputSize;
 
 void main()
 {
-    vec4 _oColor;
-    vec2 _otexCoord;
     gl_Position = VertexCoord.x * MVPMatrix[0] + VertexCoord.y * MVPMatrix[1] + VertexCoord.z * MVPMatrix[2] + VertexCoord.w * MVPMatrix[3];
-    _oPosition1 = gl_Position;
-    _oColor = COLOR;
-    _otexCoord = TexCoord.xy;
-    COL0 = COLOR;
     TEX0.xy = TexCoord.xy;
 }
 
@@ -65,24 +58,16 @@ precision mediump float;
 #define COMPAT_PRECISION
 #endif
 
-struct output_dummy {
-    vec4 _color;
-};
-
 uniform COMPAT_PRECISION int FrameDirection;
 uniform COMPAT_PRECISION int FrameCount;
 uniform COMPAT_PRECISION vec2 OutputSize;
 uniform COMPAT_PRECISION vec2 TextureSize;
 uniform COMPAT_PRECISION vec2 InputSize;
 uniform sampler2D Texture;
 COMPAT_VARYING vec4 TEX0;
-//standard texture sample looks like this: COMPAT_TEXTURE(Texture, TEX0.xy);
 
 void main()
 {
-    output_dummy _OUT;
-    _OUT._color = COMPAT_TEXTURE(Texture, TEX0.xy);
-    FragColor = _OUT._color;
-    return;
+    FragColor = COMPAT_TEXTURE(Texture, TEX0.xy);
 } 
 #endif