Singer Davido has unfollowed record producer, Rexxie on Instagram after he stylishly shaded him with the Grammys. Rexxie, who claimed he earned nominations for his production credits on Burna Boy’s Grammy-winning album, ‘Twice As Tall’ and Angelique Kidjo and Burna Boy’s Grammy-nominated song, ‘Do Yourself’, bragged during a Twitter banter with a Davido fan on Sunday that he got a …