Fix broken specs.

app/models/user.rb

@@ -1065,7 +1065,7 @@ class User < ActiveRecord::Base
   end
 
   def trigger_user_created_event
-    DiscourseEvent.trigger(:user_created, self)
+    DiscourseEvent.trigger(:user_created, self) if self.new_record?
     true
   end
 

spec/components/post_creator_spec.rb

@@ -4,9 +4,6 @@ require 'topic_subtype'
 
 describe PostCreator do
 
-  before do
-  end
-
   let(:user) { Fabricate(:user) }
   let(:topic) { Fabricate(:topic, user: user) }
 
@@ -80,7 +77,6 @@ describe PostCreator do
       end
 
       it "triggers extensibility events" do
-        creator # bypass a user_created event, can be removed when there is a UserCreator
         DiscourseEvent.expects(:trigger).with(:before_create_post, anything).once
         DiscourseEvent.expects(:trigger).with(:validate_post, anything).once
         DiscourseEvent.expects(:trigger).with(:topic_created, anything, anything, user).once