Merge branch 'remove-dead-singular-assignee-code-in-boards' into 'master'

Remove unused dead singular assignee code in boards

See merge request !12077

app/assets/javascripts/boards/components/board_sidebar.js

@@ -32,9 +32,6 @@ gl.issueBoards.BoardSidebar = Vue.extend({
     showSidebar () {
       return Object.keys(this.issue).length;
     },
-    assigneeId() {
-      return this.issue.assignee ? this.issue.assignee.id : 0;
-    },
     milestoneTitle() {
       return this.issue.milestone ? this.issue.milestone.title : 'No Milestone';
     }