cw1200: wsm: Remove 'dummy' variables

They're never read, so there is no reason for them to exist.

They just cause the compiler to complain.

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/st/cw1200/wsm.c: In function ‘wsm_ba_timeout_indication’:
 drivers/net/wireless/st/cw1200/wsm.c:1033:5: warning: variable ‘dummy2’ set but not used [-Wunused-but-set-variable]
 drivers/net/wireless/st/cw1200/wsm.c:1031:6: warning: variable ‘dummy’ set but not used [-Wunused-but-set-variable]

Cc: Solomon Peachy <pizza@shaftnet.org>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200819072402.3085022-14-lee.jones@linaro.org

drivers/net/wireless/st/cw1200/wsm.c

@@ -1028,14 +1028,12 @@ static int wsm_find_complete_indication(struct cw1200_common *priv,
 static int wsm_ba_timeout_indication(struct cw1200_common *priv,
 				     struct wsm_buf *buf)
 {
-	u32 dummy;
 	u8 tid;
-	u8 dummy2;
 	u8 addr[ETH_ALEN];
 
-	dummy = WSM_GET32(buf);
+	WSM_GET32(buf);
 	tid = WSM_GET8(buf);
-	dummy2 = WSM_GET8(buf);
+	WSM_GET8(buf);
 	WSM_GET(buf, addr, ETH_ALEN);
 
 	pr_info("BlockACK timeout, tid %d, addr %pM\n",