Performance improvements by editing rsyslog.conf. Any problem?

I noticed in /var/log/ there where many files with the same lines. For example everything in /var/log/kern.log and /var/log/messages where already in /var/log/syslog.
So I figured out I would improve performance by a tiny bit by editing /etc/rsyslog.conf and stop rsyslog to writing to those files.

I commented the following lines in rsyslog.conf
#kern.*                          -/var/log/kern.log
#daemon.*                       -/var/log/daemon.log

#*.=info;*.=notice;*.=warn;\
#       auth,authpriv.none;\
#       cron,daemon.none;\
#       mail,news.none          -/var/log/messages

Any problem with that?