add remove to util
add remove to util

aterrel/datashape,cpcloud/datashape,quantopian/datashape,cowlicks/datashape,blaze/datashape,ContinuumIO/datashape,llllllllll/datashape,aterrel/datashape,llllllllll/datashape,blaze/datashape,quantopian/datashape,cowlicks/datashape,cpcloud/datashape,ContinuumIO/datashape