RDMA/hns: remove duplicate assignment to pointer raq

The pointer raq is being assigned twice. Fix this by removing one of the
redundant assignments.

Fixes: 14ba8730 ("RDMA/hns: Remove redundant type cast for general pointers")
Link: https://lore.kernel.org/r/20200528150427.420624-1-colin.king@canonical.com
Addressses-Coverity: ("Evaluation order violation")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/hw/hns/hns_roce_hw_v1.c

@@ -1146,7 +1146,7 @@ static void hns_roce_db_free(struct hns_roce_dev *hr_dev)
 static int hns_roce_raq_init(struct hns_roce_dev *hr_dev)
 {
 	struct hns_roce_v1_priv *priv = hr_dev->priv;
-	struct hns_roce_raq_table *raq = raq = &priv->raq_table;
+	struct hns_roce_raq_table *raq = &priv->raq_table;
 	struct device *dev = &hr_dev->pdev->dev;
 	int raq_shift = 0;
 	dma_addr_t addr;