[PATCH] security: remove get_userdata function pointer

[Akhil Goyal]

> Subject: [PATCH] security: remove get_userdata function pointer
> 
> Removes get_userdata function pointer as it is being unused
> and make fast accessing method that uses dynamic field to get
> userdata as default for optimizing security path.
> 
> Signed-off-by: Srujana Challa <schalla at marvell.com>
Applied to dpdk-next-crypto

Thanks.