don't participate own posts on creation

app/services/status_message_creation_service.rb

@@ -54,7 +54,6 @@ class StatusMessageCreationService
   def process(status_message, aspect_ids, services)
     add_to_streams(status_message, aspect_ids) unless status_message.public
     dispatch(status_message, services)
-    user.participate!(status_message)
   end
 
   def add_to_streams(status_message, aspect_ids)

spec/controllers/status_messages_controller_spec.rb

@@ -190,11 +190,10 @@ describe StatusMessagesController, :type => :controller do
       expect(StatusMessage.first.provider_display_name).to eq('mobile')
     end
 
-    it "has one participation" do
+    it "has no participation" do
       post :create, status_message_hash
       new_message = StatusMessage.find_by_text(text)
-      expect(new_message.participations.count).to eq(1)
-      expect(new_message.participations.first.count).to eq(1)
+      expect(new_message.participations.count).to eq(0)
     end
 
     context 'with photos' do