mk: remove the legacy "roms" command

we don't need it. the documentation only tells you
now to run ./mk -b coreboot target1 target2 etc

Signed-off-by: Leah Rowe <leah@libreboot.org>

mk

@@ -40,13 +40,6 @@ main()
 	xbmk_inject)
 		shift 1
 		xbmk_inject "$@" ;;
-	roms)
-		if [ $# -gt 1 ] && [ "$2" = "serprog" ]; then
-			mk -b stm32-vserprog pico-serprog
-		else
-			shift 1
-			x_ ./mk -b coreboot "$@"
-		fi ;;
 	*)
 		[ -f "$spath" ] || $err "bad command"
 		$shcmd