Remove tools.go file as a workaround for package dependency

Signed-off-by: Huy Mai <[email protected]>

Makefile

@@ -187,11 +187,11 @@ deploy: $(KUSTOMIZE) manifests  ## Deploy controller in the configured Kubernete
 	make set-manifest-image-bmo MANIFEST_IMG=$(IMG_NAME) MANIFEST_TAG=$(IMG_TAG)
 	$< build config/default | kubectl apply -f -
 
-$(CONTROLLER_GEN): hack/tools/go.mod
-	cd hack/tools; go build -o $(abspath $@) sigs.k8s.io/controller-tools/cmd/controller-gen
+$(CONTROLLER_GEN):
+	GOBIN=$(TOOLS_BIN_DIR) go install sigs.k8s.io/controller-tools/cmd/controller-gen@v0.12.1
 
-$(KUSTOMIZE): hack/tools/go.mod
-	cd hack/tools; go build -o $(abspath $@) sigs.k8s.io/kustomize/kustomize/v4
+$(KUSTOMIZE):
+	GOBIN=$(TOOLS_BIN_DIR) go install sigs.k8s.io/kustomize/kustomize/v4@v4.5.7
 
 .PHONY: build-e2e
 build-e2e: