It seems that Rosetta can be uninstalled. I found 2 links that give instructions how to do it:
https://developer.apple.com/forums/thread/669486
https://iboysoft.com/news/uninstall-rosetta-2.html
That said you may want to keep Rosetta on your machine. I have an Epson scanner and Epson has not, and likely will not upgrade the driver to an M1 version. Although VueScan is M1 native, if I want to use it with the Epson scanner it has to be running under Rosetta. So if you have a similar situation with a scanner, a printer, or a software that has plugins that are Intel only, you may need Rosetta.