package/libnftnl: bump version to 1.1.4

Removed patch after upstream committed an updated version from Baruch:
https://git.netfilter.org/libnftnl/commit/?id=78709f7b55aa8934f42aa40548dcdf65e6bfeb2c



Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>