Remove container html that was adding unnecessary bottom padding

ee/app/views/shared/_epics.html.haml

@@ -3,9 +3,8 @@
   -# TODO: Auto highlight All state on page load
   = render 'shared/issuable/nav', type: :epics
 
-.panel.panel-default.panel-small.panel-without-border
-  %ul.content-list.issuable-list
-    = render partial: 'groups/epics/epic', collection: @epics
+%ul.content-list.issuable-list
+  = render partial: 'groups/epics/epic', collection: @epics
 
 -# TODO: Test pagination
 = paginate @epics, theme: "gitlab"