mwl8k: remove useless pci shutdown callback and stray debugging

This patch removes a left over debugging print present in the pci
shutdown callback, since this callback does not do anything useful, get
rid of it entirely.

Signed-off-by: Florian Fainelli <[e-mail]>
Signed-off-by: John W. Linville <[e-mail]>

drivers/net/wireless/mwl8k.c

···
 	return rc;
 }
 
-static void __devexit mwl8k_shutdown(struct pci_dev *pdev)
-{
-	printk(KERN_ERR "===>%s(%u)\n", __func__, __LINE__);
-}
-
 static void __devexit mwl8k_remove(struct pci_dev *pdev)
 {
 	struct ieee80211_hw *hw = pci_get_drvdata(pdev);
···
 	.id_table	= mwl8k_pci_id_table,
 	.probe		= mwl8k_probe,
 	.remove		= __devexit_p(mwl8k_remove),
-	.shutdown	= __devexit_p(mwl8k_shutdown),
 };
 
 module_pci_driver(mwl8k_driver);