Transferred fat can be removed just like excessive fat anywhere on the face and neck by using micro-canula liposuction. I suggest you seek a surgeon with a more artistic sense. Review before and after photos to find examples that you find results you find aesthetically pleasing.
This looks more like xanthelasma but could be fat if injected as microdroplets. I suggest you see an expert to evaluate the treatment options. Best, Dr. Emer.
Far more important than the technique is the skill and experience of your plastic surgeon. Choose your surgeon rather than the technique and let them explain why one technique may be better than another. See the below link on some suggestions on finding the most qualified Plastic Surgeon for a ...