Remove menu tabs from search results page

Migrated issue

Reported by: jhedstrom

Upgrading to Apachesolr 6.x-3.x re-exposes some previously hidden tabs on the search results page, and these need to be hidden.

See #1549374: Upgrade drupalorg_crosssite to support 6.x-3.x version of Apachesolr (Prep for D7 d.o).