The FRP feature is always enabled on your device as long as you have an active Google account. To disable FRP, you must remove your Google account.
To remove your Google account, follow these steps:
1 : From any Home screen, touch Apps > Settings.
2 : Touch Accounts > Google.
3 : Touch your Google account, and then touch MORE > Remove account.
Important: If you are sending your device in for service, selling your device, or giving it away, it is very important that you remove your Google account and reset your device.