net: rds: changing the return type from int to void
net: rds: changing the return type from int to void

as result of function rds_iw_flush_mr_pool is nowhere checked,
changing its return type from int to void.
also removing the unused variable rc as there is nothing to return

Signed-off-by: Saurabh Sengar <2db3a5fe5d908d97026733b45c9a86a5232093ea@gmail.com>
Signed-off-by: David S. Miller <fe08d3c717adf2ae63592e4c9aec6e3e404d8e3e@davemloft.net>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs