diff --git a/controller/qr.go b/controller/qr.go
index dd08637..21ed3e6 100644
--- a/controller/qr.go
+++ b/controller/qr.go
@@ -2,8 +2,8 @@ package controller
 
 import (
     "encoding/base64"
-    "image"
-    "image/color"
+    // "image"
+    // "image/color"
 
     "github.com/skip2/go-qrcode"
 )
@@ -18,36 +18,35 @@ func GenerateQRCode(data string) (string, error) {
 }
 
 // vvv DEPRECATED vvv
-
-const margin = 4
-
-type QRCodeECCLevel int64
-const (
-    LOW QRCodeECCLevel = iota
-    MEDIUM
-    QUARTILE
-    HIGH
-)
-
-func drawLargeAlignmentSquare(x int, y int, img *image.Gray) {
-    for yi := range 7 {
-        for xi := range 7 {
-            if (xi == 0 || xi == 6) || (yi == 0 || yi == 6) {
-                img.Set(x + xi, y + yi, color.Black)
-            } else if (xi > 1 && xi < 5) && (yi > 1 && yi < 5) {
-                img.Set(x + xi, y + yi, color.Black)
-            }
-        }
-    }
-}
-
-func drawSmallAlignmentSquare(x int, y int, img *image.Gray) {
-    for yi := range 5 {
-        for xi := range 5 {
-            if (xi == 0 || xi == 4) || (yi == 0 || yi == 4) {
-                img.Set(x + xi, y + yi, color.Black)
-            }
-        }
-    }
-    img.Set(x + 2, y + 2, color.Black)
-}
+// const margin = 4
+//
+// type QRCodeECCLevel int64
+// const (
+//     LOW QRCodeECCLevel = iota
+//     MEDIUM
+//     QUARTILE
+//     HIGH
+// )
+//
+// func drawLargeAlignmentSquare(x int, y int, img *image.Gray) {
+//     for yi := range 7 {
+//         for xi := range 7 {
+//             if (xi == 0 || xi == 6) || (yi == 0 || yi == 6) {
+//                 img.Set(x + xi, y + yi, color.Black)
+//             } else if (xi > 1 && xi < 5) && (yi > 1 && yi < 5) {
+//                 img.Set(x + xi, y + yi, color.Black)
+//             }
+//         }
+//     }
+// }
+//
+// func drawSmallAlignmentSquare(x int, y int, img *image.Gray) {
+//     for yi := range 5 {
+//         for xi := range 5 {
+//             if (xi == 0 || xi == 4) || (yi == 0 || yi == 4) {
+//                 img.Set(x + xi, y + yi, color.Black)
+//             }
+//         }
+//     }
+//     img.Set(x + 2, y + 2, color.Black)
+// }