Remove unused CI YAML stub from limit specs

ee/spec/lib/ee/gitlab/ci/pipeline/quota/size_spec.rb

@@ -20,21 +20,12 @@ RSpec.describe EE::Gitlab::Ci::Pipeline::Quota::Size do
 
   shared_context 'pipeline size limit exceeded' do
     before do
-      config = YAML.dump({
-        rspec: { script: 'rspec' },
-        spinach: { script: 'spinach' }
-      })
-      stub_ci_pipeline_yaml_file(config)
       plan_limits.update!(ci_pipeline_size: 1)
     end
   end
 
   shared_context 'pipeline size limit not exceeded' do
     before do
-      config = YAML.dump({
-        rspec: { script: 'rspec' }
-      })
-      stub_ci_pipeline_yaml_file(config)
       plan_limits.update!(ci_pipeline_size: 2)
     end
   end

ee/spec/lib/gitlab/ci/pipeline/chain/limit/size_spec.rb

@@ -25,10 +25,6 @@ RSpec.describe ::Gitlab::Ci::Pipeline::Chain::Limit::Size do
       gold_plan = create(:gold_plan)
       create(:plan_limits, plan: gold_plan, ci_pipeline_size: 1)
       create(:gitlab_subscription, namespace: namespace, hosted_plan: gold_plan)
-      stub_ci_pipeline_yaml_file(YAML.dump({
-        rspec: { script: 'rspec' },
-        spinach: { script: 'spinach' }
-      }))
     end
 
     context 'when saving incomplete pipelines' do