Remove obsolete patch, noticed by adam@, thank you.

devel/apr-util/patches/patch-aa

@@ -1,21 +0,0 @@
-$NetBSD: patch-aa,v 1.4 2013/07/04 15:21:51 wiz Exp $
---- configure.orig	2013-03-30 20:30:11.000000000 +0000
-+++ configure
-@@ -11219,7 +11219,7 @@ fi
-       fi
- 
-       test ${apu_has_ldap} != "1" && as_fn_error $? "could not find an LDAP library" "$LINENO" 5
--      test ${apu_has_ldap} == "1" &&
-+      test ${apu_has_ldap} = "1" &&
-   if test "x$LDADD_ldap" = "x"; then
-     test "x$silent" != "xyes" && echo "  setting LDADD_ldap to \"$LDADD_ldap_found\""
-     LDADD_ldap="$LDADD_ldap_found"
-@@ -24304,7 +24304,7 @@ case $host in
-             < $APR_BUILD_DIR/apr_rules.mk > $abs_builddir/build/rules.mk
-         ;;
-     *)
--        cp $APR_BUILD_DIR/apr_rules.mk $abs_builddir/build/rules.mk
-+        sed -e 's:^LIBTOOL=.*:LIBTOOL=$(WRAPPER_DIR)/bin/libtool:' -e "s:^LDFLAGS=.*:LDFLAGS=${LDFLAGS}:" $APR_BUILD_DIR/apr_rules.mk > $abs_builddir/build/rules.mk
-         ;;
- esac
-