removing old image array

main.go

@@ -127,17 +127,18 @@ func NewAnimation(sz image.Point, mqMessages chan mqtt.Message) *Animation {
 		log.Fatal(err)
 	}
 	rawMario, _, err = image.Decode(reader)
+	if err != nil {
+		log.Fatal(err)
+	}
 	//marioDown := imaging.FlipH(imaging.Resize(rawMario, 16, 16, imaging.Lanczos))
 	marioDown := imaging.Resize(rawMario, 16, 16, imaging.Lanczos)
 	imageMap["marioDown"] = marioDown
-	imageSlice := []image.Image{marioUp, marioDown}
 	return &Animation{
 		ctx:       gg.NewContext(sz.X, sz.Y),
 		dir:       image.Point{1, 1},
 		height:    8,
 		width:     8,
 		stroke:    8,
-		image:     imageSlice,
 		images:    imageMap,
 		updown:    "marioUp",
 		mqmsg:     mqMessages,