Drop useless checks for player->aborted in draw_map()

Drop useless checks for player->aborted in draw_map()

player->aborted gets set when we get an interrupt or EOF cookie from
the player, when update or shutdown abort commands, and when we abort
an attack (not relevant here).

The checks are useless: player interrupt and EOF are checked
elsewhere, and update/shutdown can run only when we yield the
processor, which we never do (output doesn't yield because C_MOD is
set).