- fixed incorrect alignment of scaled world panned textures combined …

…with per-sidedef scaling in the hardware renderer

This particular case incorrectly factored in the sidedef's scaling factor for how to calculate the offset.
Fortunately this is a very rare case - a quick check yielded no maps depending on it.
Should any map surface that depends on this bug a compatibility option may be needed but it doesn't seem likely that this may be the case.

src/textures/texture.cpp

@@ -1576,7 +1576,7 @@ float FTexCoordInfo::RowOffset(float rowoffset) const
 	}
 	else
 	{
-		if (mWorldPanning) return rowoffset / tscale;
+		if (mWorldPanning) return rowoffset;
 		else return rowoffset / scale;
 	}
 }
@@ -1598,7 +1598,7 @@ float FTexCoordInfo::TextureOffset(float textureoffset) const
 	}
 	else
 	{
-		if (mWorldPanning) return textureoffset / tscale;
+		if (mWorldPanning) return textureoffset;
 		else return textureoffset / scale;
 	}
 }