Revert notification specs

spec/services/notification_service_spec.rb

@@ -2,6 +2,7 @@ require 'spec_helper'
 describe NotificationService do
   let(:notification) { NotificationService.new }
+
   describe 'Keys' do
     describe :new_key do
       let(:key) { create(:personal_key) }
@@ -158,7 +159,6 @@ describe NotificationService do
     let(:merge_request) { create :merge_request, assignee: create(:user) }
     before do
-      build_team(merge_request.source_project)
       build_team(merge_request.target_project)
     end
@@ -235,16 +235,11 @@ describe NotificationService do
     end
   end
-  let(:u_watcher) { create(:user, notification_level: Notification::N_WATCH) }
-  let(:u_participating) { create(:user, notification_level: Notification::N_PARTICIPATING) }
-  let(:u_disabled) { create(:user, notification_level: Notification::N_DISABLED) }
-  let(:u_mentioned) { create(:user, username: 'mention', notification_level: Notification::N_WATCH) }
-
   def build_team(project)
-    @u_watcher = u_watcher
-    @u_participating = u_participating
-    @u_disabled = u_disabled
-    @u_mentioned = u_mentioned
+    @u_watcher = create(:user, notification_level: Notification::N_WATCH)
+    @u_participating = create(:user, notification_level: Notification::N_PARTICIPATING)
+    @u_disabled = create(:user, notification_level: Notification::N_DISABLED)
+    @u_mentioned = create(:user, username: 'mention', notification_level: Notification::N_PARTICIPATING)
     project.team << [@u_watcher, :master]
     project.team << [@u_participating, :master]