There is no delete in a slice, since in golang slices are not that high level. You can think of them as variable-length c arrays. Do take time to read http://blog.golang.org/go-slices-usage-and-internals

Given a slice like:

s := []string{"foo", "", "bar", ""}

https://play.golang.org/p/7RzNelz947

How do you remove the empty values simply? i.e. printing an end result:

["foo" "bar"]

https://play.golang.org/p/fxVyC4WqjR

func delete_empty (s []string) []string {
	var r []string
	for _, str := range s {
		if str != "" {
			r = append(r, str)
		}
	}
	return r
}

Alternatively

Another approach is to define a helper function, ala https://play.golang.org/p/Xcno8QurAn