Remove #completed_fact_check_requests.markLinkedAnchor
Remove #completed_fact_check_requests.markLinkedAnchor

The result of this call is to find an element by id matching the
hash portion of the current location (??!) and to add a 'linked' class 
to it. When this section is visible, the hash portion is #fact_checking,
and no element in the source code matches that. I'm assuming this is
legacy and removing it.

askl56/whitehall,robinwhittleton/whitehall,alphagov/whitehall,hotvulcan/whitehall,YOTOV-LIMITED/whitehall,askl56/whitehall,ggoral/whitehall,ggoral/whitehall,alphagov/whitehall,YOTOV-LIMITED/whitehall,YOTOV-LIMITED/whitehall,alphagov/whitehall,robinwhittleton/whitehall,askl56/whitehall,ggoral/whitehall,hotvulcan/whitehall,robinwhittleton/whitehall,hotvulcan/whitehall,YOTOV-LIMITED/whitehall,alphagov/whitehall,askl56/whitehall,robinwhittleton/whitehall,hotvulcan/whitehall,ggoral/whitehall