remove UUID_RE in favor of isUUID

lib/common.js

@@ -20,8 +20,6 @@ var errors = require('./errors'),
 
 var p = console.log;
 
-var UUID_RE = /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/;
-
 // ---- support stuff
 
 function objCopy(obj, target) {
@@ -422,7 +420,6 @@ function getCliTableOptions(opts) {
 //---- exports
 
 module.exports = {
-    UUID_RE: UUID_RE,
     objCopy: objCopy,
     deepObjCopy: deepObjCopy,
     zeroPad: zeroPad,