Fix #1641 (4.129 crashes when Reader device is attached)

src/calibre/devices/prs505/driver.py

@@ -146,36 +146,7 @@ class PRS505(Device):
             self._card_prefix = re.search(card_pat, mount).group(2) + os.sep
             
     
-    def open_windows_nowmi(self):
-        from calibre import plugins
-        winutil = plugins['winutil'][0]
-        volumes = winutil.get_mounted_volumes_for_usb_device(self.VENDOR_ID, self.PRODUCT_ID)
-        main = None
-        for device_id in volumes.keys():
-            if 'PRS-505/UC&' in device_id:
-                main = volumes[device_id]+':\\'
-        if not main:
-            raise DeviceError(_('Unable to detect the %s disk drive. Try rebooting.')%self.__class__.__name__)
-        self._main_prefix = main
-        card = self._card_prefix = None
-        win32api = __import__('win32api')
-        for device_id in volumes.keys():
-            if 'PRS-505/UC:' in device_id:
-                card = volumes[device_id]+':\\'
-                try:
-                    win32api.GetVolumeInformation(card)
-                    self._card_prefix = card
-                    break
-                except:
-                    continue
-            
-    
     def open_windows(self):
-        try:
-            self.open_windows_nowmi()
-            return
-        except:
-            pass
         drives = []
         wmi = __import__('wmi', globals(), locals(), [], -1) 
         c = wmi.WMI()