FORMAT using DEFMAX

[Glenn S. Burke <GSB at MIT-ML>]

There are certain macros which exist in FORMAT which really don't need
to be there.  Because they are there, however, DEFMAX gets autoloaded
when |forget-macromemos/|| gets called as they get defined.
In the next version (maybe a week to guarantee its safety?)
they won't be in there by default.  But you will get DEFMAX if you
load any macro which uses the lisp default DEFMACRO, for the same
reason.