dropdown_cats() should be deprecated in favor of a modified list_cats()/get_category_link()

[mark]

Concerns arose from a ​WordPress support thread about the dropdown_cats() template tag. Users are confused as to why dropdown_cats() doesn't have an option to output without the select html tags when wp_get_archives() does. I propose dropdown_cats() be deprecated and list_cats() be rewritten to use a function similar to get_archives_link().

[mark]

Delving further into the code, here is a change in my statement: rewrite list_cats()/get_category_link() to get similar functionality.