Removed gl_satformula option from present.fp to save an if, could be replaces with #define

wadsrc/static/shaders_gles/pp/present.fp

@@ -6,13 +6,10 @@ uniform sampler2D DitherTexture;
 
 vec4 ApplyGamma(vec4 c)
 {
-	c.rgb = min(c.rgb, vec3(2.0)); // for HDR mode - prevents stacked translucent sprites (such as plasma) producing way too bright light
-
 	vec3 valgray;
-	if (GrayFormula == 0)
-		valgray = vec3(c.r + c.g + c.b) * (1.0 - Saturation) / 3.0 + c.rgb * Saturation;
-	else
-		valgray = mix(vec3(dot(c.rgb, vec3(0.3,0.56,0.14))), c.rgb, Saturation);
+
+	valgray = mix(vec3(dot(c.rgb, vec3(0.3,0.56,0.14))), c.rgb, Saturation);
+
 	vec3 val = valgray * Contrast - (Contrast - 1.0) * 0.5;
 	val += Brightness * 0.5;
 	val = pow(max(val, vec3(0.0)), vec3(InvGamma));
@@ -32,5 +29,4 @@ vec4 ApplyGamma(vec4 c)
 void main()
 {
 	gl_FragColor =  ApplyGamma(texture2D(InputTexture, UVOffset + TexCoord * UVScale));
-//	gl_FragColor = vec4(0.5, 0.3, 0.8, 0.9);
 }