RDMA/vmw_pvrdma: Free SRQ only once

An extra kfree cleanup was missed since these are now deallocated by core.

Link: https://lore.kernel.org/r/1568848066-12449-1-git-send-email-aditr@vmware.com
Cc: <stable@vger.kernel.org>
Fixes: 68e326de ("RDMA: Handle SRQ allocations by IB/core")
Signed-off-by: Adit Ranadive <aditr@vmware.com>
Reviewed-by: Vishnu Dasa <vdasa@vmware.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/hw/vmw_pvrdma/pvrdma_srq.c

@@ -230,8 +230,6 @@ static void pvrdma_free_srq(struct pvrdma_dev *dev, struct pvrdma_srq *srq)
 
 	pvrdma_page_dir_cleanup(dev, &srq->pdir);
 
-	kfree(srq);
-
 	atomic_dec(&dev->num_srqs);
 }