RDMA/efa: Remove {} brackets from single statement if

The {} brackets are not needed according to the Linux coding style.

Link: https://lore.kernel.org/r/20200114085706.82229-5-galpress@amazon.com


Reviewed-by: Daniel Kranzdorf <dkkranzd@amazon.com>
Reviewed-by: Firas JahJah <firasj@amazon.com>
Signed-off-by: Gal Pressman <galpress@amazon.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>