Disallow delegates and validators to enable fast sync protocol

[honeycrypto]

🚀 Feature Request

Since any delegate can become a validator, we may want to encourage them to disable fast_sync. We can do this check on wallet launch just like benchmark and throw the alert (GUI) or log the error (CLI) if this account cannot use fast_sync.

We can either kill the wallet explaining why the user must disable fast_sync, or disable it automatically without killing the wallet and throw warning about that.