I have a rooted Galaxy S4 Developer Edition Device running I545OYUFNC5 KitKat and I have FoxFi installed. As much as I enjoy FoxFi, I hate using Pins, Passwords and Patterns for my lockscreen. I know there is a way around this (as per the FoxFi app in the Google Play Store) by entering your Pin, Password or Pattern incorrectly a few times and then entering your Google account password, but I found another way which seems to work on my device.
As I stated, I have FoxFi installed. Upon first boot of FoxFi it installs a VPN certificate. This can be viewed under System Settings->More->Credential Storage->Trusted Credentials ->User. After running FoxFi a few times I kept receiving the "Network may be monitored" warning in my status bar.
Following this guide, Foxfi now appears as a System Certificate and I was able to then set my Unlock method back to Swipe. I have never been bothered to set a PIN, Pattern or Password again.
Before you move the certificate, however, take note of the name and date associated with the file in case you ever wish to remove it in the future.
I would think that this would work on other verserion of Android as well (i.e. 4.3, 4.4.3, etc). Just an FYI to anyone would like to take advantage of this.