- removed the obsolete Doomsday 1.8-style texture pack support.

This poorly integrated into the texture system and wasn't compatible with modern texture packs anymore so its usefulness was questionable.

src/rendering/vulkan/system/vk_framebuffer.cpp

@@ -652,7 +652,7 @@ void VulkanFrameBuffer::PrecacheMaterial(FMaterial *mat, int translation)
 	if (tex->isSWCanvas()) return;
 
 	// Textures that are already scaled in the texture lump will not get replaced by hires textures.
-	int flags = mat->isExpanded() ? CTF_Expand : (gl_texture_usehires && !tex->isScaled()) ? CTF_CheckHires : 0;
+	int flags = mat->isExpanded() ? CTF_Expand : 0;
 	auto base = static_cast<VkHardwareTexture*>(mat->GetLayer(0, translation));
 
 	base->Precache(mat, translation, flags);