BURs: remove "Reason: " prefix from forum posts.

Don't automatically prepend "Reason: " in front of the BUR reason since
this isn't always desirable.

app/models/bulk_update_request.rb

@@ -89,8 +89,9 @@ class BulkUpdateRequest < ApplicationRecord
 
     def create_forum_topic
       CurrentUser.as(user) do
+        body = "[bur:#{id}]\n\n#{reason}"
         self.forum_topic = ForumTopic.create(title: title, category_id: 1, creator: user) unless forum_topic.present?
-        self.forum_post = forum_topic.forum_posts.create(body: reason_with_link, creator: user) unless forum_post.present?
+        self.forum_post = forum_topic.forum_posts.create(body: body, creator: user) unless forum_post.present?
         save
       end
     end
@@ -125,10 +126,6 @@ class BulkUpdateRequest < ApplicationRecord
   include ApprovalMethods
   include ValidationMethods
 
-  def reason_with_link
-    "[bur:#{id}]\n\nReason: #{reason}"
-  end
-
   def script_with_links
     tokens = AliasAndImplicationImporter.tokenize(script)
     lines = tokens.map do |token|