It will have a purpose (maybe safety critical) so removing it is probably not a good idea. Relocating it? Better.
My Dec 21 LR has always made this noise on hard acceleration. I have sensitive ears and can hear it quite clearly. To me it sounds like an elecrtocinc noise, such as is made by failing switched mode power supllies or CRT monitors, so I have assumed it's the inverter squealing under load. Would be nice to get rid of it but it's no bother and as others have said a nice accompaniment to being pinned to your seat.