iwlagn: move iwlagn_stop_device to transport layer

Since iwlagn_stop_device was the only caller to the rx_stop / tx_stop,
these two don't need to be API any more.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.guy@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h
index 8293f54..55e6c33 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/iwlwifi/iwl-trans.h
@@ -69,11 +69,6 @@
 	return priv->trans.ops->rx_init(priv);
 }
 
-static inline int trans_rx_stop(struct iwl_priv *priv)
-{
-	return priv->trans.ops->rx_stop(priv);
-}
-
 static inline void trans_rx_free(struct iwl_priv *priv)
 {
 	priv->trans.ops->rx_free(priv);
@@ -84,16 +79,16 @@
 	return priv->trans.ops->tx_init(priv);
 }
 
-static inline int trans_tx_stop(struct iwl_priv *priv)
-{
-	return priv->trans.ops->tx_stop(priv);
-}
-
 static inline void trans_tx_free(struct iwl_priv *priv)
 {
 	priv->trans.ops->tx_free(priv);
 }
 
+static inline void trans_stop_device(struct iwl_priv *priv)
+{
+	priv->trans.ops->stop_device(priv);
+}
+
 static inline int trans_send_cmd(struct iwl_priv *priv,
 				struct iwl_host_cmd *cmd)
 {