Removed some BsBaseTemplate switches

... that get unnecessary with https://gerrit.wikimedia.org/r/#/c/175674/

NOTE: There are still such switches for "left navigation" in code that
should be removed too!

Change-Id: Iede97c37c8c7e4b354a0fb2abcf4558a63a38a76
Merge "Removed some BsBaseTemplate switches"