Added is_dymanic_milestone to top partial

app/views/shared/milestones/_top.html.haml

 - page_title milestone.title, "Milestones"
-
 - group = local_assigns[:group]
+- is_dynamic_milestone = milestone.legacy_group_milestone? || milestone.dashboard_milestone?
 
 .detail-page-header
   %a.btn.btn-default.btn-grouped.pull-right.visible-xs-block.js-sidebar-toggle{ href: "#" }
@@ -30,7 +30,7 @@
         - else
           = link_to 'Reopen Milestone', group_milestone_route(milestone, {state_event: :activate }), method: :put, class: "btn btn-grouped btn-reopen"
 
-= render 'shared/milestones/deprecation_message' if milestone.legacy_group_milestone? || milestone.dashboard_milestone?
+= render 'shared/milestones/deprecation_message' if is_dynamic_milestone
 
 .detail-page-description.milestone-detail
   %h2.title
@@ -46,7 +46,7 @@
     - close_msg = group ? 'You may close the milestone now.' : 'Navigate to the project to close the milestone.'
     %span All issues for this milestone are closed. #{close_msg}
 
-- if milestone.legacy_group_milestone? || milestone.dashboard_milestone?
+- if is_dynamic_milestone
   .table-holder
     %table.table
       %thead