Remove dangling --with-kdc-kdb-update references

This configure option hasn't done anything since 1.8, so don't mention
it in configure --help or the documentation.  The disable_last_success
and disable_lockout DB options are now used to turn it off.

(back ported from commit 0b3225d)

ticket: 7837 (new)
version_fixed: 1.10.8
status: resolved

src/configure.in

@@ -234,16 +234,6 @@ AC_SUBST(PKINIT_CRYPTO_IMPL)
 AC_SUBST(PKINIT_CRYPTO_IMPL_CFLAGS)
 AC_SUBST(PKINIT_CRYPTO_IMPL_LIBS)
 
-# --with-kdc-kdb-update makes the KDC update the database with last request
-# information and failure information.
-
-AC_ARG_WITH([kdc-kdb-update],
-AC_HELP_STRING([--with-kdc-kdb-update],[Update the database @<:@don't update@:>@]), , withval=no)
-if test "$withval" = yes; then
-	AC_MSG_RESULT(Updating KDC database with each request)
-	AC_DEFINE(KRBCONF_KDC_MODIFIES_KDB,1,[Define if KDC should update database with each request])
-fi
-
 AC_ARG_ENABLE([kdc-lookaside-cache],
 AC_HELP_STRING([--disable-kdc-lookaside-cache],
                [Disable the cache which detects client retransmits]), ,