Remove unnecessary Jira template test

When a template is applied to a project
it copies all attributes to a new service
and sets template to `false` and project_id
to the ID of the project. After the service was
copied it is not different from any other
project service and behaves the same.

A service should not be a template and
attached to a project at the same time

To simulate a template applied to a project
we would need to use Projects::CreateService.
But this test would not belong to
services_controller_spec.

spec/controllers/projects/services_controller_spec.rb

@@ -153,16 +153,6 @@ describe Projects::ServicesController do
           expect(flash[:notice]).to eq 'Jira settings saved, but not activated.'
         end
       end
-
-      context 'when activating Jira service from a template' do
-        let(:service) do
-          create(:jira_service, project: project, template: true)
-        end
-
-        it 'activate Jira service from template' do
-          expect(flash[:notice]).to eq 'Jira activated.'
-        end
-      end
     end
 
     describe 'as JSON' do