Removes EE differences from ci_icon.vue

app/assets/javascripts/vue_shared/components/ci_icon.vue

@@ -21,6 +21,7 @@ import Icon from '../../vue_shared/components/icon.vue';
  * - Jobs table
  * - Jobs show view header
  * - Jobs show view sidebar
+ * - Linked pipelines
  */
 const validSizes = [8, 12, 16, 18, 24, 32, 48, 72];