* Makfile.in: Remove traces of mbchar.
	* c-parse.in (MULTIBYTE_CHARS): Remove.
	* config.in (MULTIBYTE_CHARS): Remove.
	* configure: Remove --enable-mbchar.
	* configure.in: Remove --enable-mbchar.
	* mbchar.c, mbchar.h: Remove.
	* system.h: Poison MULTIBYTE_CHARS.
	* config/linux-aout.h (MULTIBYTE_CHARS): Remove.
	* config/linux.h (MULTIBYTE_CHARS): Remove.
	* config/svr4.h (MULTIBYTE_CHARS): Remove.
	* config/sparc/linux.h (MULTIBYTE_CHARS): Remove.

From-SVN: r69009