remove unused directory

build/builder-docker/.ash_history

-ls /go/bin
-go version
-exit

build/builder-docker/Dockerfile

-# Copyright 2018 The KubeSphere Authors. All rights reserved.
-# Use of this source code is governed by a Apache license
-# that can be found in the LICENSE file.
-
-FROM golang:1.10.2-alpine3.7 as builder
-
-RUN apk add --no-cache git curl openssl
-
-RUN go get github.com/tools/godep
-#RUN go get github.com/emicklei/go-restful
-#RUN go get github.com/golang/glog
-#RUN go get github.com/spf13/pflag
-RUN go get golang.org/x/tools/cmd/goimports
-
-FROM golang:1.10.2-alpine3.7
-
-RUN apk add --no-cache git make curl openssl jq rsync godep
-
-COPY --from=builder /go/bin /go/bin

build/builder-docker/Makefile

-# Copyright 2018 The KubeSphere Authors. All rights reserved.
-# Use of this source code is governed by a Apache license
-# that can be found in the LICENSE file.
-
-default:
-	docker build -t kubesphere/kubesphere-builder .
-	@echo "ok"
-
-pull:
-	docker pull kubesphere/kubesphere-builder
-	@echo "ok"
-
-run:
-	docker run --rm -it -v `pwd`:/root kubesphere/kubesphere-builder
-
-clean:
-	@echo "ok"