Remove rule from the election rules

[Tobias Mueller <muelli cryptobitch de>]

Hi.

Currently, our rule, i.e. on https://vote.gnome.org/2014/rules.html state

    In the event of a tie for the final slot on the board, the Elections 
    Committee will schedule run-off elections as soon as possible.

I actually don't know if it is possible at all to have that situation with STV. It's probably 
theoretically possible if everybody casts the very same votes. But I actually 
wouldn't know how to even run the "run-off" election. So I propose to just 
remove that paragraph.

Cheers,
  Tobi