Remove EE-specific code from new MR email

app/views/notify/new_merge_request_email.html.haml

@@ -9,6 +9,8 @@
   %p
     Assignee: #{@merge_request.assignee_name}
 
+= render_if_exists 'notify/merge_request_approvers', merge_request: @merge_request
+
 - if @merge_request.description
   %div
     = markdown(@merge_request.description, pipeline: :email, author: @merge_request.author)

app/views/notify/new_merge_request_email.text.erb

@@ -5,6 +5,6 @@ New Merge Request <%= @merge_request.to_reference %>
 <%= merge_path_description(@merge_request, 'to') %>
 Author:    <%= @merge_request.author_name %>
 Assignee:  <%= @merge_request.assignee_name %>
+<%= render_if_exists 'notify/merge_request_approvers', merge_request: @merge_request %>
 
 <%= @merge_request.description %>
-