fix(front): remove redundant checks from add people button visibility check

Author: skipi

front/lib/front_web/templates/people/members/_add_people_button.html.eex

@@ -1,6 +1,6 @@
 <%= if show_people_management_buttons?(@conn, @org_scope?, @permissions) do %>
   <div>
-    <%= if @org_scope? do %>
+    <%= if @org_scope? and !Front.on_prem?() do %>
       <div id="add-people" data-config="<%= Poison.encode!(add_people_config(@conn)) %>"></div>
     <% else %>
       <div class="flex-m">

front/lib/front_web/templates/people/members/members_list.html.eex

@@ -32,9 +32,7 @@
           <div class="b">People</div>
         </div>
       </div>
-      <%= if !@org_scope? || !Front.on_prem?() || Front.ce_roles?() do %>
-        <%= render "members/_add_people_button.html", conn: @conn, org_scope?: @org_scope?, permissions: @permissions %>
-      <% end %>
+      <%= render "members/_add_people_button.html", conn: @conn, org_scope?: @org_scope?, permissions: @permissions %>
     </div>
 
     <div id="members">