* stdio-common/printf-parse.h: Include string.h and wchar.h.
(__find_specwc): Change into __extern_always_inline function.
(__find_specmb): Likewise. Remove ps argument. Use __strchrnul.
(__parse_one_specmb): Remove ps argument.
* stdio-common/vfprintf.c (vfprintf): Remove mbstate variable.
Adjust __find_specmb and __parse_one_specmb callers.
* stdio-common/printf-prs.c (parse_printf_format): Likewise.
* stdio-common/printf-parsemb.c (__find_specwc, __find_specmb):
Removed.
(__parse_one_specmb): Remove ps argument, adjust __find_specmb
caller.