is there a way to remove the custom recovery?

Hi

I'm running stock lollipop on my G2 D802 and I really want to install xposed but on the other hand I dont want a custom recovery after installing it becuase it makes my device less secure.

so what i want to do is install TWRP with autorec and then uninstall it (without reflashing stock!)

is there a way to do that?

BTW can somebody refer me to autorec for D802 lollipop (30B firmware) or any other tool that does that?

thanks!