iwlagn: remove unused variable swq_id

Simply remove the unused variable swq_id.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
index 522c77f..0fc86c9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
@@ -518,7 +518,7 @@
 	struct iwl_cmd_meta *out_meta;
 	struct iwl_tx_cmd *tx_cmd;
 	struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
-	int swq_id, txq_id;
+	int txq_id;
 	dma_addr_t phys_addr;
 	dma_addr_t txcmd_phys;
 	dma_addr_t scratch_phys;
@@ -620,7 +620,6 @@
 	}
 
 	txq = &priv->txq[txq_id];
-	swq_id = txq->swq_id;
 	q = &txq->q;
 
 	if (unlikely(iwl_queue_space(q) < q->high_mark)) {