i40e: remove redundant fdir forward declarations
i40e: remove redundant fdir forward declarations

This patch removes several redundant forward declarations
in i40e_fdir.c.

Fixes: a778a1fa2e4e ("i40e: set up and initialize flow director")

Signed-off-by: Rami Rosen <7f5a0f674127d5d5a91ecfe3b41be456d732af3d@intel.com>
Acked-by: Helin Zhang <aba9dfdb1a6ec8bf1ff66b95272c029f8dfde1b1@intel.com>

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