Automatic merge from submit-queue
Move quota usage testing for loadbalancers into unit tests
Fixes https://github.com/kubernetes/kubernetes/issues/26319
* moved testing for node port and load balancer usage in quota to unit tests
* remove node port and node port -> loadbalancer service testing out of e2e
* covered already in replenishment_controller_test scenario
Given the time it takes to even allocate a load balancer, it seems better to test that outside of this test case to avoid unnecessary flakes.
/cc @bprashanth