1. Delete the android-studio folder;
  2. Delete the sdk folder if it is in not inside the android-studio directory;
  3. Delete ~/.AndroidStudio2.2/, which contains config and system;
  4. Delete ~/.android;
  5. Delete ~/.local/share/applications/jetbrains-studio.desktop, if you created a shortcut using Configure->Create Desktop Entry.


The android-studio folder is normally in /usr/local/ for your user profile, or /opt/ for shared users.

The sdk folder is normally at ~/Android.

References: askubuntu.com