cryptodev: remove XTS comment duplication
cryptodev: remove XTS comment duplication

This patch removes duplicated text about AES-XTS
mode.

Signed-off-by: Damian Nowak <1f6e7eee70b58196beb4172e63c036347847d390@intel.com>
Acked-by: Fiona Trahe <7ba562cc372916cd557d0be347608f8b4da4f746@intel.com>
Acked-by: Akhil Goyal <74d7c4c993a22c1d4f60c46ff3d95c969a24a25c@nxp.com>

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