Supprimer Google ou Chrome Prediction

To delete a URL prediction:
To remove a single prediction from the omnibox (like our nytimes.com/dining example), 
arrow down with your keyboard to highlight the URL, 
then click Shift-Delete on a PC; 
Shift-FN-Delete on a Mac; 
or Alt-Shift-Backspace on a Chromebook.
Witty Walrus