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

@@ -1,71 +0,0 @@
-package main
-
-import (
-	"fmt"
-
-	"go.wit.com/lib/protobuf/zoopb"
-	"go.wit.com/log"
-)
-
-func main() {
-	m := testMachine()
-	testPackages(m)
-
-	loop := m.Packages.SortByName()
-	for loop.Scan() {
-		p := loop.Package()
-		log.Info("installed package:", p.Name, p.Version, p.PkgName)
-	}
-
-	if m.IsInstalled("bash") {
-		log.Info("bash installed check worked")
-	} else {
-		log.Info("bash installed check failed")
-		panic("bash")
-	}
-
-	if m.IsInstalled("foo") {
-		log.Info("foo not-installed check failed")
-		panic("foo")
-	} else {
-		log.Info("foo not-installed check worked")
-	}
-}
-
-func testMachine() *zoopb.Machine {
-	var m *zoopb.Machine
-	m = new(zoopb.Machine)
-	m.Hostname = "zookeeper"
-	return m
-}
-
-func testPackages(m *zoopb.Machine) {
-	m.Packages = new(zoopb.Packages)
-	// r = zoopb.LoadJSON("go.wit.com/lib/protobuf/zoopb")
-
-	new1 := new(zoopb.Package)
-	new1.Name = "bash"
-	new1.Version = "5.2.21"
-	if m.Packages.Append(new1) {
-		log.Info("added", new1.Name, "ok")
-	} else {
-		log.Info("added", new1.Name, "failed")
-	}
-
-	new2 := new(zoopb.Package)
-	new2.Name = "go-clone"
-	new2.Version = "0.6.8" // good version of the macos
-	if m.Packages.Append(new2) {
-		log.Info("added", new2.Name, "ok")
-	} else {
-		log.Info("added", new2.Name, "failed")
-	}
-
-	if m.Packages.Append(new2) {
-		log.Info("added", new2.Name, "ok (this is bad)")
-	} else {
-		log.Info("added", new2.Name, "failed (but ok)")
-	}
-
-	fmt.Println("package count = ", m.Packages.Len())
-}