Hide Epic widget for incidents

ee/app/views/shared/issuable/_sidebar_item_epic.haml

 - if issuable_sidebar[:supports_epic]
   - if issuable_sidebar[:features_available][:epics]
+    - unless @issuable.labels.map(&:title).include?('incident')
       #js-vue-sidebar-item-epics-select{ data: { can_edit: can_admin_issue?.to_s, group_id: @project.group.id, issue_id: @issuable.id, epic_issue_id: @issuable.epic_issue&.id } }
 
   - else
+    - unless @issuable.labels.map(&:title).include?('incident')
       = render 'shared/promotions/promote_epics'

ee/changelogs/unreleased/epic-issue-removal.yml

+---
+title: Hide Epic widget for incidents
+merge_request: 37731
+author:
+type: changed