Ubuntu - Forget Wireless Network
How to remove/forget wireless networks in Ubuntu Linux. There may be minor variations depending on the version used, but steps are very similar. 
- Click on the wireless icon in the top right corner of the screen. Then click on the tool icon to open settings.  
- You should now have Wi-Fi settings open. Click on the gear icon on the network that you wish to remove. 
- A small window should pop up, and automatically be showing the Details tab. Click on the red "Forget Connection" button. 
- The network has now been removed.
