Cardozo-Tlaseca v. Gonzales, 460 F.3d 1102 (9th Cir. Aug. 21, 2006) (conviction vacated for any procedural or substantive defect has been eliminated for immigration purposes, and cannot trigger removal, whereas conviction vacated for equitable, rehabilitative, or immigration purposes unrelated to the merits of the conviction remains), following Matter of Pickering, 23 I. & N. Dec. 621 (BIA 2003), reversed on other grounds in Pickering v. Gonzales, 454 F.3d 525 (6th Cir. July 17, 2006).