remove build_dir #1538
remove build_dir #1538

FCP-INDI/nipype,mick-d/nipype,carolFrohlich/nipype,mick-d/nipype,FCP-INDI/nipype,carolFrohlich/nipype,FCP-INDI/nipype,mick-d/nipype,mick-d/nipype,carolFrohlich/nipype,carolFrohlich/nipype,FCP-INDI/nipype