In the rare event that New Yorkers elect another out of touch billionaire who often flies his private jet out of town and refuses to tell anyone where he’s going, Councilman Peter Vallone is proposing a bill that would require mayors to inform the City Clerk when they travel 250 miles outside of the city limits. That would mean no more hush-hush trips to Bermuda, a destination about 770 miles away and a place Bloomberg frequents, but hates to talk about.