De Araujo v. Gonzales, 457 F.3d 146, 150 (1st Cir. Aug. 11, 2006) (no due process violation where BIA denied request to grant sua sponte motion on the basis of recently vacated convictions, allowing noncitizen to apply for relief, where BIA denied motion on the basis that it would deny any application for relief as a matter of discretion because noncitizen, "had previously been convicted of four criminal offenses, and while three of these had been vacated, none had been vacated because De Araujo was not guilty of the crimes committed.")