xen-netback: remove duplicated function definition

There are two duplicated xenvif_zerocopy_callback() definitions.
Remove one of them.

Signed-off-by: Liang Li <liang.z.li@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Li, Liang Z 2015-07-06 08:42:56 +08:00 • committed by David S. Miller
commit 6ab13b2769