How to remove Sublime installed using the website instructions?
Solution 1:
sudo rm -r /opt/Sublime\ Text\ 2
sudo rm /usr/bin/sublime
sudo rm /usr/share/applications/sublime.desktop
sudo sed -i 's/sublime\.desktop/gedit.desktop/g' /usr/share/applications/defaults.list
Solution 2:
Those steps are not wrong, but it would be easier (and sometimes saver as pointed out by your link) to do it using a ppa. So if you still want to remove it then you will have to 'reverse' step 2, 3, 4 and 5 using the following commands.
Step 2 reverse sudo rm -R /opt/Sublime\ Text\ 2
Step 3 reverse sudo rm /usr/bin/sublime
Step 4 reverse sudo rm /usr/share/applications/sublime.desktop
Step 5 reverse sudo gedit /usr/share/applications/defaults.list
and replace all occurrences of sublime.desktop with gedit.desktop