Remove logrotate step (no change in 6.8)

doc/update/6.7-to-6.8.md

@@ -64,9 +64,6 @@ sudo -u git -H bundle exec rake assets:clean assets:precompile cache:clear RAILS
 sudo cp lib/support/init.d/gitlab /etc/init.d/gitlab
 sudo chmod +x /etc/init.d/gitlab
 
-# Update the logrotate configuration (keep logs for 90 days instead of 52 weeks)
-sudo cp lib/support/logrotate/gitlab /etc/logrotate.d/gitlab
-
 # Close access to gitlab-satellites for others
 sudo chmod u+rwx,g+rx,o-rwx /home/git/gitlab-satellites
 ```