If you need to hide "Add to cart" button in product list (category pages, product sliders, etc., except product page):
You can do it using CSS styles. For this open file: themes/your theme folder/css/global.css
And in the bottom of file paste this code:
.ajax_add_to_cart_button{
display: none !important;
}
And you will get product list without "Add to cart" button: