e1000: Remove PM warning DPRINTKs breaking 2.4.x kernels

remove DPRINTKs that were printing warnings about power management on
2.4 kernels.  Since we really don't react differently these printk
statements are not needed.  This code was originally added to fix
some compile time warnings that got fixed by newer kernels.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>

drivers/net/e1000/e1000_main.c

@@ -4515,21 +4515,13 @@ e1000_suspend(struct pci_dev *pdev, pm_message_t state)
 
 		E1000_WRITE_REG(&adapter->hw, WUC, E1000_WUC_PME_EN);
 		E1000_WRITE_REG(&adapter->hw, WUFC, wufc);
-		retval = pci_enable_wake(pdev, PCI_D3hot, 1);
-		if (retval)
-			DPRINTK(PROBE, ERR, "Error enabling D3 wake\n");
-		retval = pci_enable_wake(pdev, PCI_D3cold, 1);
-		if (retval)
-			DPRINTK(PROBE, ERR, "Error enabling D3 cold wake\n");
+		pci_enable_wake(pdev, PCI_D3hot, 1);
+		pci_enable_wake(pdev, PCI_D3cold, 1);
 	} else {
 		E1000_WRITE_REG(&adapter->hw, WUC, 0);
 		E1000_WRITE_REG(&adapter->hw, WUFC, 0);
-		retval = pci_enable_wake(pdev, PCI_D3hot, 0);
-		if (retval)
-			DPRINTK(PROBE, ERR, "Error enabling D3 wake\n");
-		retval = pci_enable_wake(pdev, PCI_D3cold, 0);
-		if (retval)
-			DPRINTK(PROBE, ERR, "Error enabling D3 cold wake\n");
+		pci_enable_wake(pdev, PCI_D3hot, 0);
+		pci_enable_wake(pdev, PCI_D3cold, 0);
 	}
 
 	if (adapter->hw.mac_type >= e1000_82540 &&
@@ -4538,13 +4530,8 @@ e1000_suspend(struct pci_dev *pdev, pm_message_t state)
 		if (manc & E1000_MANC_SMBUS_EN) {
 			manc |= E1000_MANC_ARP_EN;
 			E1000_WRITE_REG(&adapter->hw, MANC, manc);
-			retval = pci_enable_wake(pdev, PCI_D3hot, 1);
-			if (retval)
-				DPRINTK(PROBE, ERR, "Error enabling D3 wake\n");
-			retval = pci_enable_wake(pdev, PCI_D3cold, 1);
-			if (retval)
-				DPRINTK(PROBE, ERR,
-				        "Error enabling D3 cold wake\n");
+			pci_enable_wake(pdev, PCI_D3hot, 1);
+			pci_enable_wake(pdev, PCI_D3cold, 1);
 		}
 	}
 
@@ -4554,9 +4541,7 @@ e1000_suspend(struct pci_dev *pdev, pm_message_t state)
 
 	pci_disable_device(pdev);
 
-	retval = pci_set_power_state(pdev, pci_choose_state(pdev, state));
-	if (retval)
-		DPRINTK(PROBE, ERR, "Error in setting power state\n");
+	pci_set_power_state(pdev, pci_choose_state(pdev, state));
 
 	return 0;
 }
@@ -4567,22 +4552,15 @@ e1000_resume(struct pci_dev *pdev)
 {
 	struct net_device *netdev = pci_get_drvdata(pdev);
 	struct e1000_adapter *adapter = netdev_priv(netdev);
-	int retval;
 	uint32_t manc, ret_val;
 
-	retval = pci_set_power_state(pdev, PCI_D0);
-	if (retval)
-		DPRINTK(PROBE, ERR, "Error in setting power state\n");
+	pci_set_power_state(pdev, PCI_D0);
 	e1000_pci_restore_state(adapter);
 	ret_val = pci_enable_device(pdev);
 	pci_set_master(pdev);
 
-	retval = pci_enable_wake(pdev, PCI_D3hot, 0);
-	if (retval)
-		DPRINTK(PROBE, ERR, "Error enabling D3 wake\n");
-	retval = pci_enable_wake(pdev, PCI_D3cold, 0);
-	if (retval)
-		DPRINTK(PROBE, ERR, "Error enabling D3 cold wake\n");
+	pci_enable_wake(pdev, PCI_D3hot, 0);
+	pci_enable_wake(pdev, PCI_D3cold, 0);
 
 	e1000_reset(adapter);
 	E1000_WRITE_REG(&adapter->hw, WUS, ~0);