[sushi] constants: remove unused constant

[Cosimo Cecchi <cosimoc src gnome org>]

commit 63568503b05aa2f29f682d2b281cd80f67c21c0e
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Fri Jun 21 10:23:46 2019 -0700

    constants: remove unused constant

 src/util/constants.js | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/src/util/constants.js b/src/util/constants.js
index 5faf38e..655a9b9 100644
--- a/src/util/constants.js
+++ b/src/util/constants.js
@@ -24,7 +24,6 @@
  */
 
 var VIEW_MIN = 400;
-var VIEW_BACKGROUND_OPACITY = 220;
 var VIEW_MAX_W = 800;
 var VIEW_MAX_H = 600;
 var TOOLBAR_SPACING = 32;