I created a website shortcut on the desktop. After I deleted it, the icon under All installed applications still exists.
How do I remove it? The icon doesn't exist in /usr/share/applications
.
To remove a Google application shortcut:
Et voilà, gone!
All web shortcuts are there.
Now you can go crazy making little web applets and remove them:
~/.local/share/applications
. Maybe there's something there you can get delete.