Can I un-jailbreak my iPhone 5c 7.1.1 Pangu through my phone's settings without itunes?

Can I un-jailbreak my iPhone 5c 7.1.1 Pangu through my phone's settings without itunes?

Sorry you will need to restore in iTunes if you wish to remove the jailbreak. Now restoring will cause your phone to update iOS 8.
If you just want to restore your phone to factory defaults + cydia then you can use semi-restore