By Ali Kucukgocmen ISTANBUL (Reuters) -A Turkish court on Thursday halted the trial of Saudi suspects over the killing of journalist Jamal Khashoggi and transferred it to Saudi Arabia, a ruling that drew condemnation from rights groups and comes as Ankara mends ties with Riyadh. The decision was expected after the prosecutor called last week for the trial in absentia of 26 Saudi suspects to be transferred from Istanbul to Riyadh. The justice minister later endorsed the request, which was initially sought by Riyadh. Khashoggi’s killing at the Saudi consulate in Istanbul four years ago raised a …