Remove .issue-box element from Epics (list)

This is a single-line change.
Signed-off-by: Takuya Noguchi <takninnovationresearch@gmail.com>

ee/app/views/groups/epics/_epic.html.haml

 %li{ id: dom_id(epic), data: { labels: epic.label_ids, id: epic.id } }
-  .issue-box
+  .issuable-info-container
     - if @can_bulk_update
       .issue-check.hidden
         = check_box_tag dom_id(epic, "selected"), nil, false, 'data-id' => epic.id, class: "selected-issuable"
-    .issuable-info-container
-      .issuable-main-info
-        .issue-title.title
-          %span.issue-title-text{ data: { qa_selector: 'epic_title_text' } }
-            - if epic.confidential?
-              %span.has-tooltip{ title: _('Confidential') }
-                = confidential_icon(epic)
-            = link_to epic.title, epic_path(epic)
-        .issuable-info
-          %span.issuable-reference
-            = epic.to_reference(@group)
-          %span.issuable-authored.d-none.d-sm-inline-block
-            ·
-            opened #{time_ago_with_tooltip(epic.created_at, placement: 'bottom')}
-            by #{link_to_member(@group, epic.author, avatar: false)}
-            = gitlab_team_member_badge(epic.author)
-          - if epic.start_date? || epic.end_date?
-             
-            %span.issuable-dates.d-inline-flex.align-items-center.align-top
-              = sprite_icon('calendar', size: 14, css_class: 'mr-1')
-              %span= epic_timeframe(epic)
-          - if epic.labels.any?
-             
-            - epic.labels.each do |label|
-              = render_label(label.present(issuable_subject: @group), tooltip: true, link: group_epics_path(@group, label_name:[label.name]), small: true)
+    .issuable-main-info
+      .issue-title.title
+        %span.issue-title-text{ data: { qa_selector: 'epic_title_text' } }
+          - if epic.confidential?
+            %span.has-tooltip{ title: _('Confidential') }
+              = confidential_icon(epic)
+          = link_to epic.title, epic_path(epic)
+      .issuable-info
+        %span.issuable-reference
+          = epic.to_reference(@group)
+        %span.issuable-authored.d-none.d-sm-inline-block
+          ·
+          opened #{time_ago_with_tooltip(epic.created_at, placement: 'bottom')}
+          by #{link_to_member(@group, epic.author, avatar: false)}
+          = gitlab_team_member_badge(epic.author)
+        - if epic.start_date? || epic.end_date?
+           
+          %span.issuable-dates.d-inline-flex.align-items-center.align-top
+            = sprite_icon('calendar', size: 14, css_class: 'mr-1')
+            %span= epic_timeframe(epic)
+        - if epic.labels.any?
+           
+          - epic.labels.each do |label|
+            = render_label(label.present(issuable_subject: @group), tooltip: true, link: group_epics_path(@group, label_name:[label.name]), small: true)
 
-      .issuable-meta
-        %ul.controls
-          - if epic.closed?
-            %li.issuable-status
-              = _('CLOSED')
+    .issuable-meta
+      %ul.controls
+        - if epic.closed?
+          %li.issuable-status
+            = _('CLOSED')
 
-          = render 'shared/issuable_meta_data', issuable: epic
+        = render 'shared/issuable_meta_data', issuable: epic
 
-        .float-right.issuable-updated-at.d-none.d-sm-inline-block
-          %span
-            = _('updated %{time_ago}').html_safe % { time_ago: time_ago_with_tooltip(epic.updated_at, placement: 'bottom', html_class: 'issue_update_ago') }
+      .float-right.issuable-updated-at.d-none.d-sm-inline-block
+        %span
+          = _('updated %{time_ago}').html_safe % { time_ago: time_ago_with_tooltip(epic.updated_at, placement: 'bottom', html_class: 'issue_update_ago') }

ee/changelogs/unreleased/284602-remove-issue-box-epic.yml

+---
+title: Remove .issue-box element from Epics (list)
+merge_request: 48000
+author: Takuya Noguchi
+type: performance