Just wanted to follow up with my camera lens cover repair in case anyone else need the info.  I used a heat gun to loosen the glue. It was just a few seconds and I was able to ply out the glass with a dental sharp tool. I was careful not to scratch the camera lens itself. Cleaned the residual glue with rubbing alcohol and Q tips.  Once again thanks to CornholioGSM's tip on the Redmi Note 7 glass I ordered it.  It was the exact size, except that I had to install it upside down (the writing will be upside down) so the larger opening is on top. 
 
	Nice not to have  halos in my pictures. Thanks