Removing sugar from condensed milk?
Unfortunately, no, at least not if you want to use the end product as milk. 

As this answer to a previous question of yours suggests, once the sugar is dissolved in a liquid or purée, there is no way to get it out. You can technically separate the sugar from the liquid (See this question and its answers on the Chemistry stack exchange) but I don't believe any of the suggested methods (such as evaporating off the liquid, or fermenting out the sugars) will work for you here.