From an article published June 11th, 2011, on BallotAccess.org:
Straight-ticket devices have been repealed, or are likely to be eliminated, in three states this year. On May 25, Wisconsin Governor Scott Walker signed AB 7, an omnibus election law bill that eliminates the device. On June 8, the North Carolina Senate passed SB 411 by a vote of 30-17; that bill repeals the device.