refactor rh-operator test directory

The rh-operator tests including metric cardinality is not in scope of
OLM e2e tests. This commit moves those tests out of e2e directory
and avoids those tests from becoming e2e tests targets. The commit
also reverts a change in the makefile that avoided them as test
targets from previous directory layout. The rh-operator tests are
removable from OLM repo and should require least amount of effort
in removing them as makefile targets.

Author: bowenislandsong

Makefile

@@ -109,7 +109,7 @@ setup-bare: clean e2e.namespace
 
 # e2e test exculding the rh-operators directory which tests rh-operators and their metric cardinality.
 e2e:
-	go test -v $(MOD_FLAGS) -failfast -timeout 70m `go list ./test/e2e/... | grep -v /rh-operators` -namespace=openshift-operators -kubeconfig=${KUBECONFIG} -olmNamespace=openshift-operator-lifecycle-manager -dummyImage=bitnami/nginx:latest
+	go test -v $(MOD_FLAGS) -failfast -timeout 70m ./test/e2e/... -namespace=openshift-operators -kubeconfig=${KUBECONFIG} -olmNamespace=openshift-operator-lifecycle-manager -dummyImage=bitnami/nginx:latest
 
 e2e-local: build-linux build-wait
 	. ./scripts/build_local.sh
@@ -123,7 +123,7 @@ e2e-local-docker:
 	. ./scripts/run_e2e_docker.sh $(TEST)
 
 e2e-operator-metrics:
-	go test -v $(MOD_FLAGS) -failfast -timeout 70m ./test/e2e/rh-operators
+	go test -v $(MOD_FLAGS) -failfast -timeout 70m ./test/rh-operators/...
 
 vendor:
 	go mod tidy