netfilter: xtables: remove extraneous header that slipped in

Commit 0b8ad87 (netfilter: xtables: add missing header files to export
list) erroneously added this.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
1 file changed