lan78xx: remove redundant statement in lan78xx_get_eee

eee_active is set by phy_ethtool_get_eee() already, using the same
logic plus an additional check against link speed/duplex values.
See genphy_c45_eee_is_active() for details.
So we can remove this line.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/b086b296-0a1b-42d4-8e2b-ef6682598185@gmail.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>