Issue #3508981: Removed selector for non-checkbox list of links and removed checkbox library from LinksWidget

Facets widget "List of links" had all the javascript functionality of the checkbox widgets included. I found it not to make much sense to have this functionality here as it breaks the way the list of links is intended to work. The tag got set to display: none; and was no longer showing as active. Also this could no longer be reached by tabbing, breaking accessibility. Removing the selectors in the JS ensures this does not break even when other checkbox facets are present. Removing the library from the widget makes sense since this JS does not apply to this widget.