Removed http.Handler interface

Including this added 60KB to the compiled library which I do not think
is worth it just to include a helper function consisting of about 4
lines of code.

snowflake.go

@@ -4,7 +4,6 @@ package snowflake
 import (
 	"encoding/base64"
 	"fmt"
-	"net/http"
 	"strconv"
 	"strings"
 	"sync"
@@ -86,15 +85,6 @@ func (n *Node) Generate() (ID, error) {
 	), nil
 }
 
-func (n *Node) ServeHTTP(w http.ResponseWriter, r *http.Request) {
-
-	id, err := n.Generate()
-	if err != nil {
-		http.Error(w, "Internal Error", 500)
-	}
-	fmt.Fprint(w, id)
-}
-
 // Int64 returns an int64 of the snowflake ID
 func (f ID) Int64() int64 {
 	return int64(f)