The way I uninstalled the Linux version of Google Earth is as follows:
Go into the Software Boutique and uninstall Google Earth.
Go to a terminal and type:
sudo apt-get purge googleearth
Go to your home folder, press CTRL/h to reveal all hidden files and folders and delete the “.googleearth” folder.
Go back to a terminal and type:
sudo apt-get autoremove
Then, in a terminal, type:
sudo apt-get install wine
Then download the Windows Google Earth exe file I linked to and install it with Wine