how to hide the"Result 1 of 13" in feature product

-- url of the page with the problem -- : mywebsite.com/mypage
-- HikaShop version -- : x.x.x
-- Joomla version -- : x.x
-- PHP version -- : x.x.x
-- Browser(s) name and version -- : XXXXX x.x.x
-- Error-message(debug-mod must be tuned on) -- : Error_message

This is the pagination display. If you don't want any pagination, you can turn off the "pagination" option of the configuration.
Otherwise, if you still want the pagination but just remove the results counter, you can add such CSS in the frontend CSS file of HikaShop via the Display tab of the configuration: