Removed if around board deleting

removed duplication

app/assets/javascripts/boards/models/list.js.es6

@@ -40,13 +40,11 @@ class List {
   }
 
   destroy () {
-    if (this.type !== 'blank') {
     gl.issueBoards.BoardsStore.state.lists.$remove(this);
     gl.issueBoards.BoardsStore.updateNewListDropdown(this.id);
 
     gl.boardService.destroyList(this.id);
   }
-  }
 
   update () {
     gl.boardService.updateList(this.id, this.position);
@@ -93,17 +91,21 @@ class List {
 
   createIssues (data) {
     data.forEach((issueObj) => {
-      this.issues.push(new ListIssue(issueObj));
+      this.addIssue(new ListIssue(issueObj));
     });
   }
 
   addIssue (issue, listFrom) {
     this.issues.push(issue);
 
+    if (this.label) {
       issue.addLabel(this.label);
+    }
 
+    if (listFrom) {
       gl.boardService.moveIssue(issue.id, listFrom.id, this.id);
     }
+  }
 
   findIssue (id) {
     return this.issues.filter( issue => issue.id === id )[0];