Is Kevin Holland hanging up the gloves? On Thursday, the UFC welterweight hinted at a potential retirement, posting a cryptic message to Instagram that reads as follows: View this post on Instagram A post shared by kevin holland (@trailblaze2top) Had a good run 30 in a little over a month got paid I’m out NEXT CAREER CHOICE?? He also posted the following message on his Instagram Stories: Retired before 30 MMA Fighting has reached out to Holland’s management for comment. Holland, 29, most recently fought at UFC 279 where he lost to Khamzat Chimaev by first-round submission in a 180-pound…