ALSA: ctxfi: Simplify PM callbacks

This is a similar cleanup like the commit [3db084fd: ALSA: fm801:
PCI core handles power state for us].

Since pci_set_power_state(), pci_save_state() and pci_restore_state()
are already done in the PCI core side, so we don't need to it doubly.

Also, pci_enable_device(), pci_disable_device() and pci_set_master()
calls in PM callbacks are superfluous nowadays, too, so get rid of
them as well.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

sound/pci/ctxfi/cthw20k1.c

@@ -2099,20 +2099,11 @@ static int hw_suspend(struct hw *hw)
 		pci_write_config_dword(pci, UAA_CFG_SPACE_FLAG, 0x0);
 	}
 
-	pci_disable_device(pci);
-	pci_save_state(pci);
-	pci_set_power_state(pci, PCI_D3hot);
-
 	return 0;
 }
 
 static int hw_resume(struct hw *hw, struct card_conf *info)
 {
-	struct pci_dev *pci = hw->pci;
-
-	pci_set_power_state(pci, PCI_D0);
-	pci_restore_state(pci);
-
 	/* Re-initialize card hardware. */
 	return hw_card_init(hw, info);
 }

sound/pci/ctxfi/cthw20k2.c

@@ -2209,24 +2209,12 @@ static int hw_card_init(struct hw *hw, struct card_conf *info)
 #ifdef CONFIG_PM_SLEEP
 static int hw_suspend(struct hw *hw)
 {
-	struct pci_dev *pci = hw->pci;
-
 	hw_card_stop(hw);
-
-	pci_disable_device(pci);
-	pci_save_state(pci);
-	pci_set_power_state(pci, PCI_D3hot);
-
 	return 0;
 }
 
 static int hw_resume(struct hw *hw, struct card_conf *info)
 {
-	struct pci_dev *pci = hw->pci;
-
-	pci_set_power_state(pci, PCI_D0);
-	pci_restore_state(pci);
-
 	/* Re-initialize card hardware. */
 	return hw_card_init(hw, info);
 }