configure: Remove obsolescent AC_HEADER_STDC macro

As per the documentation current systems have the relevant headers
included, so the check is unnecessary.

diff --git a/configure.ac b/configure.ac
index fdb04e5f15cf09f9e4d32acc39841701e78be28d..fda8cbddf12710e376ad8d75d41c5aad8a45de5e 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -254,7 +254,6 @@ AS_IF([test "$BISON" = ":" && test ! -e "$srcdir/src/lib/event-filter-parser.h"]
 AS_IF([test "$FLEX" = ":" && test ! -e "$srcdir/src/lib/event-filter-lexer.c"],
   AC_MSG_ERROR([flex is required when building from git])
 ])
-AC_HEADER_STDC
 AC_C_INLINE
 LT_INIT
 AM_ICONV