Hi,
Where do you want to do that ?
On a listing of the frontend ? Everywhere in the backend ?
Something else ?
If it's only on a listing on the frontend, edit the menu item via the Joomla menu manager and increase the number of rows to more than the amount of products you have to not have any pagination, that's the easiest and there is no point in having the pagination at all if you display all the elements by default. The goal of a pagination is to not display all the possible elements at once to limit resources consumption on the server.