configure.ac: Remove all mentions of mh-sysv4 and mh-solaris.

2011-03-24  Paolo Bonzini  <bonzini@gnu.org>

	* configure.ac: Remove all mentions of mh-sysv4 and mh-solaris.
	* configure: Regenerate.
	* Makefile.def: Remove all mentions of X11_FLAGS_TO_PASS.
	* Makefile.tpl: Likewise.
	* Makefile.in: Regenerate.

config:
2011-03-24  Paolo Bonzini  <bonzini@gnu.org>

	* mh-sysv4: Remove.
	* mh-solaris: Remove.

From-SVN: r171416