Render droplab button only if Subgroups feature is supported

app/views/groups/show.html.haml

@@ -15,9 +15,9 @@
       - if can? current_user, :create_projects, @group
         - new_project_label = _("New project")
         - new_subgroup_label = _("New subgroup")
+        - if can_create_subgroups
           .btn-group.new-project-subgroup.droplab-dropdown.js-new-project-subgroup{ data: { project_path: new_project_path(namespace_id: @group.id), subgroup_path: new_group_path(parent_id: @group.id) } }
             %input.btn.btn-success.dropdown-primary.js-new-group-child{ type: "button", value: new_project_label, data: { action: "new-project" } }
-          - if can_create_subgroups
             %button.btn.btn-success.dropdown-toggle.js-dropdown-toggle{ type: "button", data: { "dropdown-trigger" => "#new-project-or-subgroup-dropdown" } }
               = icon("caret-down", class: "dropdown-btn-icon")
             %ul#new-project-or-subgroup-dropdown.dropdown-menu.dropdown-menu-align-right{ data: { dropdown: true } }
@@ -28,7 +28,6 @@
                   .description
                     %strong= new_project_label
                     %span= s_("GroupsTree|Create project under this group.")
-            - if can_create_subgroups
               %li.divider.droplap-item-ignore
               %li{ role: "button", data: { value: "new-subgroup", text: new_subgroup_label } }
                 .menu-item
@@ -37,6 +36,8 @@
                   .description
                     %strong= new_subgroup_label
                     %span= s_("GroupsTree|Create a subgroup under this group.")
+        - else
+          = link_to new_project_label, new_project_path(namespace_id: @group.id), class: "btn btn-success"
 
   - if params[:filter].blank? && @children.empty?
     = render "shared/groups/empty_state"