RDMA/mlx4: Delete useless module.h include

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

Link: https://lore.kernel.org/r/fa91416f41e195f072fcdb8ad0ea085cee006502.1642960861.git.leonro@nvidia.com


Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>