staging: et131x: Update README file

I believe that the driver is up to date with the latest network driver changes, so removing this line from the TODO to see if anyone else disagrees.

Also all useless typecasts are now dead.
Signed-off-by: NMark Einon <mark.einon@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/staging/et131x/README

@@ -9,8 +9,6 @@ Note, the powermanagement options were removed from the vendor provided
 driver as they did not build properly at the time.
 
 TODO:
-	- forward port for latest network driver changes
-	- kill useless typecasts (e.g. in et1310_phy.c)
 	- alloc_etherdev is initializing memory with zero?!?
 	- add_timer call in et131x_netdev.c is correct?
 	- Add power saving functionality (suspend, sleep, resume)