winebus.sys: Remove useless casts to self.

dlls/winebus.sys/bus_udev.c

@@ -1086,7 +1086,7 @@ static int parse_uevent_info(const char *uevent, DWORD *vendor_id,
             /* The caller has to free the serial number */
             if (*value)
             {
-                *serial_number = (WCHAR*)strdupAtoW(value);
+                *serial_number = strdupAtoW(value);
                 found_serial = 1;
             }
         }

dlls/winebus.sys/main.c

@@ -380,7 +380,7 @@ static NTSTATUS build_device_relations(DEVICE_RELATIONS **devices)
     i = 0;
     LIST_FOR_EACH_ENTRY(ptr, &pnp_devset, struct pnp_device, entry)
     {
-        (*devices)->Objects[i] = (DEVICE_OBJECT*)ptr->device;
+        (*devices)->Objects[i] = ptr->device;
         i++;
     }
     LeaveCriticalSection(&device_list_cs);