REFACTOR: removes useless conditional (#9667)

REFACTOR: removes useless conditional (#9667)

This use of variable ‘content’ always evaluates to true.

diff --git a/app/assets/javascripts/select-kit/components/multi-select.js b/app/assets/javascripts/select-kit/components/multi-select.js
index 51ce57d..16681b8 100644
--- a/app/assets/javascripts/select-kit/components/multi-select.js
+++ b/app/assets/javascripts/select-kit/components/multi-select.js
@@ -104,7 +104,7 @@ export default SelectKitComponent.extend({
         }
       });
 
-      return this.selectKit.modifySelection(content || []);
+      return this.selectKit.modifySelection(content);
     } else {
       return this.selectKit.noneItem;
     }

GitHub sha: 5a201082

This commit appears in #9667 which was approved by eviltrout. It was merged by jjaffeux.