Remove unused weightSelect from initIssuableSidebar

app/assets/javascripts/init_issuable_sidebar.js

@@ -7,8 +7,6 @@ import Sidebar from './right_sidebar';
 
 import DueDateSelectors from './due_date_select';
 
-import WeightSelect from 'ee/weight_select'; // eslint-disable-line import/first
-
 export default () => {
   const sidebarOptions = JSON.parse(document.querySelector('.js-sidebar-options').innerHTML);
 
@@ -16,7 +14,6 @@ export default () => {
     full_path: sidebarOptions.fullPath,
   });
   new LabelsSelect();
-  new WeightSelect();
   new IssuableContext(sidebarOptions.currentUser);
   new DueDateSelectors();
   Sidebar.initialize();