Patch looks good to me, I'm generally in favour of things that replace

Eglot-rolled facilities with standard ones.

But I haven't tested it.  What will `package-get-version` say of a master

build of Emacs where lisp/progmodes/eglot.el has changes that haven't

been published to GNU Elpa yet?  Does it even matter?

Anyway, I think the change is safe to install, just please make sure it 

doesn't trip the GitHub CI (it shouldn't).