Now that the new search is deployed, we should clean up the old search code, remove the Tire gem, delete the old filters and the CSS that goes along with them, and anything else that's marked for removal.
How to test: doesn't need to be completely thorough, just sanity-check that search-related functionalities are still working.
Work search, try various options
Work filtering (user, pseud, tag, collection)
Bookmark search, try various options
Bookmark filtering (user, pseud, tag, collection)
Edit a work and see it drop in/ out of work search/filters
Edit a bookmark and see it drop in/out of bookmark search/filters