A teacher hired by a Florida school was forced by the superintendent to either resign or be fired (with no reason given) after only three weeks. Now, Shepherd Scalf is filing a discrimination complaint with the ACLU, alleging that the district thought he was trans because he’s intersex. “Receiving this ultimatum was confusing and overwhelming. Everything had been going so well — I couldn’t understand why this was happening,” said Shepard Scalf i…