fix: remove non-existent target in makefile (argoproj#1813)

Signed-off-by: Hui Kang <[email protected]>

Author: cskh

Makefile

@@ -123,12 +123,12 @@ gen-k8scodegen: go-mod-vendor
 
 # generates ./manifests/crds/
 .PHONY: gen-crd
-gen-crd: $(DIST_DIR)/controller-gen
+gen-crd: install-go-tools-local
 	go run ./hack/gen-crd-spec/main.go
 
 # generates mock files from interfaces
 .PHONY: gen-mocks
-gen-mocks: $(DIST_DIR)/mockery
+gen-mocks: install-go-tools-local
 	./hack/update-mocks.sh
 
 # generates openapi_generated.go

docs/CONTRIBUTING.md

@@ -56,6 +56,8 @@ cd ~/go/src/github.com/argoproj/argo-rollouts
 
 The `make controller` command will build the controller.
 
+* `make install-tools-local` - Runs scripts to install codegen utility CLIs necessary for codegen.
+
 * `make codegen` - Runs the code generator that creates the informers, client, lister, and deepcopies from the types.go and modifies the open-api spec.