There are 2 easy methods used to hide/remove  the menu bullets in the Joomla! Milkyway template: 

1. Using the Module Manager:
   
   • in the backend Joomla! panel  head to Extensions -> Module Manager
   • select from the list the menu that you want to edit
   • from the Module Parameters (right panel) change the Menu Style from "List" to "Legacy Vertical"
     
2. Edit the template.css file:
   • to edit the template.css file, in the Joomla! backend click on Extensions -> Template Manager 
   • edit the rhuk_milkyway template .
   • click on the "Edit CSS" icon and choose from the list the template.css file.
   • edit the file and put the following code at the end of the document:

   #leftcolumn li {
   list-style-type: none;
   }
   
   #leftcolumn ul {
   margin: 0px;
   padding: 0px;
   }

The advantage of the second method is that it will hide the bullets for all the Joomla! menus with bullets. When using the first method, you will have to repeat the process for every menu with bullets.