doc: remove notice about AES-GCM IV and J0
doc: remove notice about AES-GCM IV and J0

This patch removes information about deprecation of AES-GCM/GMAC
API for IV without J0.

Fixes: fac52fb26a54 ("cryptodev: add option to support both IV and J0 for GCM")
Cc: stable@dpdk.org

Signed-off-by: Arek Kusztal <4bf5ef838d7576d5719b17cd64a25f70d57e7e5b@intel.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk