rm forward (reference) arrow

isso/js/app/text/forward.svg

@@ -1,6 +0,0 @@
-<!-- Generator: IcoMoon.io --><svg width="10" height="10" viewBox="0 0 32 32" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" fill="gray">
-  <g>
-    <path d="M 17.961,11.954L 17.961,2 L 32,16L 17.961,30L 17.961,19.958 C 10.826,19.958, 3.784,21.2,0,27.094 C 0.394,16.353, 8.43,13.796, 17.961,11.954z">
-    </path>
-  </g>
-</svg>

isso/js/app/text/svg.js

@@ -1,6 +1,5 @@
-define(["text!./forward.svg", "text!./arrow-down.svg", "text!./arrow-up.svg"], function (forward, arrdown, arrup) {
+define(["text!./arrow-down.svg", "text!./arrow-up.svg"], function (arrdown, arrup) {
     return {
-        "forward": forward,
         "arrow-down": arrdown,
         "arrow-up": arrup
     };