RDMA/bnxt_re: Remove set but not used variables 'pg' and 'idx'

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/infiniband/hw/bnxt_re/qplib_rcfw.c: In function '__send_message':
drivers/infiniband/hw/bnxt_re/qplib_rcfw.c:101:10: warning:
 variable 'idx' set but not used [-Wunused-but-set-variable]
drivers/infiniband/hw/bnxt_re/qplib_rcfw.c:101:6: warning:
 variable 'pg' set but not used [-Wunused-but-set-variable]

commit cee0c7bba4 ("RDMA/bnxt_re: Refactor command queue management
code") involved this, but not used.

Link: https://lore.kernel.org/r/20200227064900.92255-1-yuehaibing@huawei.com
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/hw/bnxt_re/qplib_rcfw.c

@@ -98,7 +98,6 @@ static int __send_message(struct bnxt_qplib_rcfw *rcfw, struct cmdq_base *req,
 	unsigned long flags;
 	u32 size, opcode;
 	u16 cookie, cbit;
-	int pg, idx;
 	u8 *preq;
 
 	pdev = rcfw->pdev;
@@ -167,9 +166,6 @@ static int __send_message(struct bnxt_qplib_rcfw *rcfw, struct cmdq_base *req,
 	hwq_ptr = (struct bnxt_qplib_cmdqe **)hwq->pbl_ptr;
 	preq = (u8 *)req;
 	do {
-		pg = 0;
-		idx = 0;
-
 		/* Locate the next cmdq slot */
 		sw_prod = HWQ_CMP(hwq->prod, hwq);
 		cmdqe = &hwq_ptr[get_cmdq_pg(sw_prod, cmdq_depth)]