Switch to github.com/golang/dep for vendoring

Signed-off-by: Mrunal Patel <mrunalp@gmail.com>

vendor/github.com/containers/storage/hack/make/.ensure-httpserver

@@ -0,0 +1,15 @@
+#!/bin/bash
+set -e
+
+# Build a Go static web server on top of busybox image
+# and compile it for target daemon
+
+dir="$DEST/httpserver"
+mkdir -p "$dir"
+(
+	cd "$dir"
+	GOOS=${DOCKER_ENGINE_GOOS:="linux"} GOARCH=${DOCKER_ENGINE_GOARCH:="amd64"} CGO_ENABLED=0 go build -o httpserver github.com/docker/docker/contrib/httpserver
+	cp ../../../../contrib/httpserver/Dockerfile .
+	docker build -qt httpserver . > /dev/null
+)
+rm -rf "$dir"