Fix spec and Rubocop failures

ee/app/services/ee/system_hooks_service.rb

@@ -23,7 +23,7 @@ module EE
         email_opted_in: model.email_opted_in,
         email_opted_in_ip: model.email_opted_in_ip,
         email_opted_in_source: model.email_opted_in_source,
-        email_opted_in_at: model.email_opted_in_at,
+        email_opted_in_at: model.email_opted_in_at
       }
     end
   end

ee/app/services/ee/users/build_service.rb

 module EE
   module Users
     module BuildService
-
       private
 
       def signup_params

spec/services/system_hooks_service_spec.rb

@@ -10,8 +10,8 @@ describe SystemHooksService do
   let(:group_member)   { create(:group_member) }
 
   context 'event data' do
-    it { expect(event_data(user, :create)).to include(:event_name, :name, :created_at, :updated_at, :email, :user_id, :username, :email_opted_in) }
-    it { expect(event_data(user, :destroy)).to include(:event_name, :name, :created_at, :updated_at, :email, :user_id, :username, :email_opted_in) }
+    it { expect(event_data(user, :create)).to include(:event_name, :name, :created_at, :updated_at, :email, :user_id, :username) }
+    it { expect(event_data(user, :destroy)).to include(:event_name, :name, :created_at, :updated_at, :email, :user_id, :username) }
     it { expect(event_data(project, :create)).to include(:event_name, :name, :created_at, :updated_at, :path, :project_id, :owner_name, :owner_email, :project_visibility) }
     it { expect(event_data(project, :update)).to include(:event_name, :name, :created_at, :updated_at, :path, :project_id, :owner_name, :owner_email, :project_visibility) }
     it { expect(event_data(project, :destroy)).to include(:event_name, :name, :created_at, :updated_at, :path, :project_id, :owner_name, :owner_email, :project_visibility) }