I couldn't find anything in the help docs myself.
Here's a quick hack, though.
jQuery.removeCookie('googtrans', { path: 'www.baberich.de' });
jQuery.removeCookie('googtrans', { domain: '.baberich.de' });
window.document.location.href = "/";
You can just remove Google's cookies and it will get rid of the translation after a site refresh. Make sure you do not refresh with the #googletrans(en|fr)!
I am using
jquery-cookie[
^]
for cookie manipulation, you can use whatever, though.