net: dsa: mv88e6xxx: remove wait and update routines

Now that we have proper Wait Bit and Wait Mask routines, remove the
unused mv88e6xxx_wait routine and its Global 1 and Global 2 variants.

The indirect tables such as the Device Mapping Table or Priority
Override Table make use of an Update bit to distinguish reading (0)
from writing (1) operations. After a write operation occurs, the bit
self clears right away so there's no need to wait on it. Thus keep
things simple and remove the mv88e6xxx_update helper as well.

Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/dsa/mv88e6xxx/global1.c

@@ -27,11 +27,6 @@ int mv88e6xxx_g1_write(struct mv88e6xxx_chip *chip, int reg, u16 val)
 	return mv88e6xxx_write(chip, addr, reg, val);
 }
 
-int mv88e6xxx_g1_wait(struct mv88e6xxx_chip *chip, int reg, u16 mask)
-{
-	return mv88e6xxx_wait(chip, chip->info->global1_addr, reg, mask);
-}
-
 int mv88e6xxx_g1_wait_bit(struct mv88e6xxx_chip *chip, int reg, int
 			  bit, int val)
 {