removed obsolete array mapping

lib/dialects/mysql/query.js

@@ -30,10 +30,6 @@ module.exports = (function() {
       if (err) {
         this.emit('error', err, this.callee)
       } else {
-        if (Array.isArray(results) && !!results[0] && Utils._.keys(results[0]).length === 1) {
-          results = results.map(function(result){ return Utils._.values(result)[0] })
-        }
-
         this.emit('success', this.formatResults(results))
       }
     }.bind(this)).setMaxListeners(100)