RDMA/hns: Delete the unnecessary initializing enum to zero

It deletes the unnecessary initializing enum to zero.
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Shaobo Xu <xushaobo2@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

drivers/infiniband/hw/hns/hns_roce_device.h

@@ -171,7 +171,7 @@ enum {
 };
 
 enum hns_roce_mtt_type {
-	MTT_TYPE_WQE = 0,
+	MTT_TYPE_WQE,
 	MTT_TYPE_CQE,
 };