chore: remove unused dep (go-enum) (kubeflow#1323)

Signed-off-by: Alessio Pragliola <seth.pro@gmail.com>

Author: Al-Pragliola

Makefile

@@ -201,9 +201,6 @@ clean/odh:
 bin/protoc:
 	./scripts/install_protoc.sh
 
-bin/go-enum:
-	GOBIN=$(PROJECT_BIN) ${GO} install github.com/searKing/golang/tools/go-enum@v1.2.97
-
 bin/protoc-gen-go:
 	GOBIN=$(PROJECT_BIN) ${GO} install google.golang.org/protobuf/cmd/protoc-gen-go@v1.31.0
 
@@ -252,7 +249,7 @@ clean/deps:
 	rm -Rf bin/*
 
 .PHONY: deps
-deps: bin/protoc bin/go-enum bin/protoc-gen-go bin/protoc-gen-go-grpc bin/golangci-lint bin/goverter bin/openapi-generator-cli bin/envtest
+deps: bin/protoc bin/protoc-gen-go bin/protoc-gen-go-grpc bin/golangci-lint bin/goverter bin/openapi-generator-cli bin/envtest
 
 .PHONY: vendor
 vendor: