Removing unused core components. (Disabled in make.conf)

[Tom Judge]

Hi,

I have the following options in /etc/make.conf:

NO_PROFILE=true
NO_SENDMAIL=true
NO_GAMES=true
NO_I4B=true
NO_ATM=true
NO_INET6=true
NO_BLUETOOTH=true
NO_IPFILTER=true
NO_RCMDS=true
NO_KERBEROS=true


However after a "make buildworld installworld" the utilities and libs 
associated with these packages are still installed,  is there any easy 
way to remove them from the system?

Thanks

Tom