User Exit problem

HI Gurus!

I have user-exit , i have added 4 enchancements, how to remove one of that enhancement.

Project ZPPORDER enhancement for confirmation of orders

Enhancement Impl Exp CONFPP03 PP order conf.: Cust. specific check after op. selection

Function exit EXIT_SAPLCORF_103

Enhancement Impl Exp CONFPP04 PP order conf.: Customer specific input checks 2

Function exit EXIT_SAPLCORF_104

Enhancement Impl Exp CONFPP05 PP order conf.: Customer specific enhancements when saving

Function exit EXIT_SAPLCORF_105

Enhancement Impl Exp PPCO0005 Storage location/backflushing when order is created

Function exit EXIT_SAPLCOSD_001

regards,

Rahul