As others are saying, that’s not really an option unless you’re really dedicated. IF it has an unlockable bootloader you could technically get to compiling and tinkering to get everything built, but in order to get a phone all set you’d need to get the right drivers and do a whole lot of tinkering (like full time job levels of building and tinkering) kind of deal to get it built. Phone’s aren’t so plug and play like computers.
If you there’s no rom support and/or a permanently locked bootloader but you want an OS without x y and z you can always try to fire up ADB bridge and disable stuff. You could also accomplish the same by rooting, though it’s a bit of a security risk (though not as overblown as some people say IMO).