Remove legacy CLI and dependencies

This is the final step in removing the old CLI in favor of
the unified CLI. This removes the legacy code and the documentation.

Change-Id: Iad61b3239e131b3b8fd00eb87113f1bf44d8c2ab

Makefile

@@ -136,24 +136,6 @@ install: manifests kustomize ## Install CRDs into the K8s cluster specified in ~
 install-cmctl: ## Install the cert-manager cmctl CLI
 	@bash -c "mkdir -p bin; test -f bin/cmctl || { curl -sSL -o cmctl.tar.gz https://github.com/cert-manager/cert-manager/releases/download/${CERT_MANAGER_VERSION}/cmctl-linux-amd64.tar.gz && tar xzf cmctl.tar.gz && mv cmctl ./bin; rm cmctl.tar.gz; }"
 
-.PHONY: install-cert-manager
-install-cert-manager: install-cmctl ## Install the cert-manager operator from a OLM sub and wait for API availability
-	kubectl apply -f ./olm-deps/cert-manager.yaml
-	./bin/cmctl check api --wait=2m
-
-OPERATOR_NAMESPACE ?= operators
-
-.PHONY: setup-prometheus-operator-serviceaccount
-# This "hack" is required on MicroShift so that the operator can be deployed
-setup-prometheus-operator-serviceaccount:
-	kubectl get -n $(OPERATOR_NAMESPACE) sa prometheus-operator || kubectl -n $(OPERATOR_NAMESPACE) create serviceaccount prometheus-operator
-	oc adm policy add-scc-to-user privileged system:serviceaccount:$(OPERATOR_NAMESPACE):prometheus-operator
-
-.PHONY: install-prometheus-operator
-install-prometheus-operator: setup-prometheus-operator-serviceaccount
-	kubectl apply -f ./olm-deps/prometheus/prometheus-subscription.yaml
-	until kubectl wait --for=condition=Ready --timeout 5s pods -l app.kubernetes.io/name=prometheus-operator -n operators | grep "prometheus-operator"; do sleep 5; done
-
 .PHONY: uninstall
 uninstall: manifests kustomize ## Uninstall CRDs from the K8s cluster specified in ~/.kube/config. Call with ignore-not-found=true to ignore resource not found errors during deletion.
 	$(KUSTOMIZE) build config/crd | kubectl delete --ignore-not-found=$(ignore-not-found) -f -

cli/cmd/initialize.go

@@ -215,7 +215,7 @@ func MkInitCmd() *cobra.Command {
 		full        bool
 		connections []string
 		initCmd     = &cobra.Command{
-			Use:       "init",
+			Use:       "init {config,manifest}",
 			Short:     "CLI/project initialization subcommands",
 			Long:      "These subcommands can be used to generate a sample CLI context, or a sample Software Factory manifest.",
 			ValidArgs: initAllowedArgs,