The Austrian government moved on Tuesday to seize the housewhere Hitler was born, and it may tear it down, in an effort to demystify a site that has become a magnet for neo-Nazis as well as tourists. The move comes after decades of hand-wringing over the fate of the property, which has been vacant since tenants left in 2011 after a dispute with the owner, who refused to allow necessary renovations. Last year, the government appointed a historical commission to determine how best to handle the building. The house — in the town of Braunau am Inn, next to the Austrian-German border and about 75 miles east of Munich — had a tavern on the ground level and apartments on the upper floors, one of which was rented by Hitler’s parents before his birth on April 20, 1889. Fears that the house could become…