remove unused/unnecessary check for memset
diff --git a/configure.ac b/configure.ac
index fc89836..1f7d726 100644
--- a/configure.ac
+++ b/configure.ac
@@ -50,9 +50,6 @@ PKG_CHECK_MODULES(CPPUNIT, cppunit, [CPPUNIT="yes"], [CPPUNIT="no"])
AC_MSG_RESULT($CPPUNIT)
AM_CONDITIONAL(HAVE_CPPUNIT, test "x$CPPUNIT" != "xno")
-# Checks for library functions -- this isn't really used at the moment
-AC_CHECK_FUNCS([memset])
-
dnl search the include directory (required for non-srcdir builds).
dnl should come after the system services checks otherwise headers
dnl may conflict.