[POWERPC] EEH: Clean up comments

Clean up commentary, remove dead code.

Signed-off-by Linas Vepstas <linas@austin.ibm.com>

Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/powerpc/platforms/pseries/eeh_driver.c

@@ -113,9 +113,9 @@ static void eeh_report_error(struct pci_dev *dev, void *userdata)
 /**
  * eeh_report_mmio_enabled - tell drivers that MMIO has been enabled
  *
- * Report an EEH error to each device driver, collect up and
+ * Tells each device driver that IO ports, MMIO and config space I/O
- * merge the device driver responses. Cumulative response
+ * are now enabled. Collects up and merges the device driver responses.
- * passed back in "userdata".
+ * Cumulative response passed back in "userdata".
  */
 
 static void eeh_report_mmio_enabled(struct pci_dev *dev, void *userdata)
@@ -123,8 +123,6 @@ static void eeh_report_mmio_enabled(struct pci_dev *dev, void *userdata)
 	enum pci_ers_result rc, *res = userdata;
 	struct pci_driver *driver = dev->driver;
 
-	// dev->error_state = pci_channel_mmio_enabled;
-
 	if (!driver ||
 	    !driver->err_handler ||
 	    !driver->err_handler->mmio_enabled)