I had to search your view source to find the nav_currencies and nav_language comments around the social media links before knowing what you actually wanted, as there are no currency or language elements visible in your header. (There are also no currency or language elements anywhere in a stock Zen Cart header, so not only is it template-specific, yours has been significantly modified from your original custom template.)
Anyway, the divider is a border which you can eliminate here:
stylesheet_handheld.css (line 354)
#navCurrenciesWrapper .nav_currencies {
border-left: 1px solid #D2D2D2;
float: left;
margin-top: 8px;
padding: 0 15px;
}