* ldmisc.c (ldmalloc, xmalloc, ldrealloc, xrealloc): Functions

	* ldmisc.c (ldmalloc, xmalloc, ldrealloc, xrealloc): Functions
	deleted; will use libiberty versions instead.
	* ldctor.c ldfile.c ldlang.c ldmain.c ldmisc.c ldmisc.h lexsup.c
	mri.c Makefile.in: Change callers.

	* ldmisc.c (vfinfo): Remove cleanup code.
	* ldmain.c (remove_output): Put it here (new function).
	(preserve_output): New function.
	(main): Register remove_output and preserve_output with atexit.
	* ldmain.c ldgram.y: Call xexit instead of exit.
	* ldmisc.h: Declare xexit.