gcc/
	* config.gcc: Remove support for sparc-*-openbsd*,
	i860-*-sysv4*, ip2k-*-elf, ns32k-*-netbsdelf*,
	ns32k-*-netbsd*.
	* config.host: Remove support for i860-*-sysv4* as a host.
	* config/i860/*, config/ip2k/*, config/ns32k/*,
	config/sparc/openbsd.h, config/sparc/t-openbsd: Remove.
	* doc/install.texi, doc/invoke.texi, doc/md.texi: Don't
	mention obsolete ports.

testsuite/
	* gcc.dg/20020312-2.c, gcc.dg/sibcall-3.c, gcc.dg/sibcall-4.c,
	gcc.dg/cpp/assert4.c: Don't mention obsolete ports.

From-SVN: r102189