If you have ever had the bumper off you'll see that there is an alignment tab for the stock headlamp assembly. It is redundant because the screw holes are what align the lamp. Anyway, it is nothing to remove it, won't affect the bumper integrity in any way, doesn't have any clearcoat paint on it or shouldn't and won't affect either light system in any case. Don't worry about it.
Former owner of '99 CSVT - Silver #222/2760
356/334 wHP/TQ at 10psi on pump gas!
See My Mods
'05 Volvo S40 Turbo 5 AWD with 6spd, Passion Red
'06 Mazda5 Touring, 5spd,MTX, Black
