💥 remove isDefined, not used

Author: Lars-Magnus Skog

lib/util.js

@@ -19,10 +19,6 @@ function dispatchError (db, error, callback) {
   typeof callback === 'function' ? callback(error) : db.emit('error', error)
 }
 
-function isDefined (v) {
-  return typeof v !== 'undefined'
-}
-
 function promisify () {
   var callback
   var promise = new Promise(function (resolve, reject) {
@@ -38,6 +34,5 @@ module.exports = {
   defaultOptions: defaultOptions,
   getOptions: getOptions,
   dispatchError: dispatchError,
-  isDefined: isDefined,
   promisify: promisify
 }