iwlwifi: remove duplicate initialization in __iwl_down()

We initialize exit_pending twice.  It's the second initialization which
is correct.  That was added in d745d472 "iwlwifi: cancel scan when
down the device".
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/iwlwifi/iwl-agn.c

@@ -2537,7 +2537,7 @@ static void iwl_cancel_deferred_work(struct iwl_priv *priv);
 static void __iwl_down(struct iwl_priv *priv)
 {
 	unsigned long flags;
-	int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status);
+	int exit_pending;
 
 	IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n");