never put binaries in go libraries

example/Makefile

@@ -1,15 +0,0 @@
-build:
-	GO111MODULE=off go build
-	./example
-
-goimports:
-	goimports -w *.go
-
-prep:
-	go get -v -t -u
-
-run:
-	go run *.go
-
-clean:
-	-rm -f example

example/main.go

@@ -1,91 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"os"
-
-	pb "go.wit.com/lib/protobuf/virtbuf"
-)
-
-//
-// saves entries in a config file
-//
-
-func main() {
-	TestWriteCluster()
-
-	var c *pb.Cluster
-	c = pb.InitCluster()
-
-	// log.Println(aCluster.String())
-	// show the droplets to STDOUT
-	loop := c.DropletsAll() // get the list of droplets
-	for loop.Scan() {
-		d := loop.Droplet()
-		fmt.Println("\tdroplet =", d.Hostname, "preffered host:", d.PreferredHypervisor)
-	}
-
-	/*
-		// show the hypervisors to STDOUT
-		for _, h := range aCluster.Hypervisors {
-			fmt.Println("\thypervisor =", h.Hostname, h.GetMemoryPrintable())
-		}
-	*/
-
-	/*
-		json := aCluster.FormatJSON()
-		fmt.Println(json)
-
-		data, _ := aCluster.MarshalJSON()
-		fmt.Println(string(data))
-
-		text := aCluster.FormatTEXT()
-		fmt.Println(text)
-	*/
-}
-
-/*
-func marshalWriteToFile(myWriter *bufio.Writer, c *pb.Cluster) {
-	buf, err := proto.Marshal(c)
-	if err != nil {
-		log.Fatal("marshaling error: ", err)
-	}
-	tmp, err := myWriter.Write(buf)
-	myWriter.Flush()
-	log.Println("bufio.Write() tmp, err = ", tmp, err)
-
-	buf, err = proto.Marshal(c)
-	tmp2, err := myWriter.Write(buf)
-	myWriter.Flush()
-	log.Println("bufio.Write() tmp2, err = ", tmp2, err)
-}
-*/
-
-func TestWriteCluster() {
-	c := pb.CreateSampleCluster(7)
-	os.Setenv("VIRTIGO_HOME", "/tmp/virtigo/")
-
-	if err := c.ConfigSave(); err != nil {
-		fmt.Println("configsave error", err)
-		os.Exit(-1)
-	}
-	// marshalUnmarshal()
-}
-
-/*
-func marshalUnmarshal() {
-	test := pb.CreateSampleCluster(7)
-	data, err := proto.Marshal(test)
-	if err != nil {
-		log.Fatal("marshaling error: ", err)
-	}
-
-	newTest := &pb.Cluster{}
-	err = proto.Unmarshal(data, newTest)
-	if err != nil {
-		log.Fatal("unmarshaling error: ", err)
-	} else {
-		log.Println("proto.Marshal() and proto.Unmarshal() worked")
-	}
-}
-*/