ADVISORY-Alerts and stories on Thai election exit poll withdrawn

Four alerts and a story on an exit poll indicating opposition winning most seats is wrong and is withdrawn. The poll was taken before voting began. The same information was used in the main trunk story, which is also withdrawn.

STORY_NUMBER: L3N21B08X STORY_DATE: 24/03/2019 STORY_TIME: 1015 GMT STORY_NUMBER: L3N21B00W STORY_DATE: 24/03/2019 STORY_TIME: 1042 GMT. (Editing by Neil Fullick)