Remove duplicate tests

ee/spec/models/ci/minutes/notification_spec.rb

@@ -27,18 +27,6 @@ describe Ci::Minutes::Notification do
 
         it { is_expected.to be_falsey }
       end
-
-      context 'when limit not yet exceeded' do
-        let(:group) { create(:group, :with_not_used_build_minutes_limit) }
-
-        it { is_expected.to be_falsey }
-      end
-
-      context 'when minutes are not yet set' do
-        let(:group) { create(:group, :with_build_minutes_limit) }
-
-        it { is_expected.to be_falsey }
-      end
     end
   end