Removed name parameter as list_name alternative.

1. go to Website & Content → Products
2. create some product, make it have approved status
3. go to front end
4. input existing product name in the search box, make search
5. confirm that product is shown on search results page
6. change template themes/advanced/in-commerce/elements/content_boxes/search_results.elm.tpl - change parameter from list_name="product_search_results" to name="product_search_results" in all 5 places in this template
7. refresh page with search results
8. confirm, that no products shown on search results page - that means name parameter has no effect more as list_name alternative