It doesn't serve much purpose and takes up many precious bytes. And,
after all, parsed didn't do it either...

This allows us to remove forth/z80a.fs. Another big step towards
self-hosting!

I don't remove z80a.fs yet because build process needs it, but that
will change shortly.

It's not possible to reliably determine its end and with some memory
initialization scenarios, it makes RLDICT fail.

As I wrote in my "Clarify signed-ness" commit, "0 <" is broken.

Also, made this unit a bit more compact. The RC2014 stage1 can
really use some breathing room...

Also, fix some PSP leaks related to LOAD.

and remove cfspack, which will not ever be used again.

Saves quite a few bytes in the final binary.

Saves quite a bit of binary space. More than 300 bytes in forth1.bin

And fix broken negative display in ".".

Remove flagsToBC boot routine.