No, there never have been dolmuses running directly between Oludeniz and Kaya.
From Oludeniz you need to get a dolmus to Hisaronu and then catch another from Hisaronu to Kaya. They pass through Hisaronu between 30 and 40 minutes past each hour.
Dolmuses from Kaya to Hisaronu leave the village on the hour.