Removing all 32bit RPM packages

If you happen to come across a pure 64bit system that was installed the default way and includes lots of 32bit stuff. And you know for a fact all the 32bit functionality is not needed, just proceed to:

[root@system ~]# rpm -qa --qf '%{name}.%{arch}\n' | grep 'i[36]86$' | xargs rpm -e

Clean and simple...