ABIDJAN, Feb 14 (Reuters) - Two executives from Dutch-based oil trader Trafigura were released from prison in Ivory Coast on Wednesday following the settlement of a dispute over the dumping of toxic waste, the company said. Trafigura's director and West African regional director had been held in Abidjan's prison since September on charges relating to the dumping last August, which killed at least 10 people and poisoned thousands.