I don't mean to sound insulting; I don't know your experience level so I have to cover the basics.
You're not actually using /path/to/freenet/icons are you? You'd be surprised how many people just copy and paste. That directory will most definitely not exist.
Just to make sure we're on the same page.
cd /usr/share/icons
look for any folders labeled freenet with
ls
. If there is a folder there, then you can
sudo rm -r /usr/share/icons/nameoffolder
where nameoffolder = whatever the name of the freenet folder is.
You can do the same thing with the ~/.icons folder with
cd ~/.icons
and seeing if there is any directory freenet related in there.
Again, just covering the basics here.
If you want to scan your entire root partition for anything freenet related you can do
Code:
find / -type d -name "freenet" 2>/dev/null
and if anything turns up it will list it. Do note this process may take a while depending on your hardware capabilities.