Removed obsolete out commended code.

tilemapper/renderer.go

@@ -46,8 +46,6 @@ func NewRenderer(xOfs, zOfs int16, width, height int) (renderer *Renderer) {
 
 //func (r *Renderer) minY(x, z int16) (minY int32) {
 func (r *Renderer) minY(ofs, w int) (minY int32) {
-	//w := r.width << 4
-	//ofs := int(z)*w<<4 + int(x)<<4
 	minY = int32(math.MaxInt32)
 	for yEnd := ofs + w<<4; ofs < yEnd; {
 		for xEnd := ofs + 16; ofs < xEnd; ofs++ {