RDMA/opa: Delete useless module.h include

There is no need in include of module.h in the following file.

Link: https://lore.kernel.org/r/9384bc21bc3b60b340e04746568746dd4cdfa468.1642960861.git.leonro@nvidia.comSigned-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

drivers/infiniband/ulp/opa_vnic/opa_vnic_netdev.c

@@ -50,7 +50,6 @@
  * netdev functionality.
  */
 
-#include <linux/module.h>
 #include <linux/if_vlan.h>
 #include <linux/crc32.h>