Title says it all.
I'm sure there will be human spotting still, but no need to "measure."

USFL to eliminate chains, measure first downs with chip in ball and yellow line on TV
When it’s time to measure for a first down in the USFL, the officials will call for a high-tech solution in place of the decidedly low-tech 10-yard chains that have been used in football for …
profootballtalk.nbcsports.com
I'm sure there will be human spotting still, but no need to "measure."