Remove "old" GNU malloc in src/malloc.c, and all references to it. Drop the GNU_MALLOC define, which was only used to distinguish between "old" and "new" GNU malloc. See xemacs-patches message with ID <870180fe0911061348g168f85e2m5153e2b554b94803@mail.gmail.com>.

;; For our purposes we can treat the vt200 and vt100 almost alike.
;; Most differences are handled by the termcap entry.
(load "term/vt100" nil t)

;; Make F11 an escape key.
(define-key function-key-map "\e[23~" [?\e])