[PATCH] network: pcnet_cs.c: remove unnecessary 'mdio_reset'

'mdio_reset' has bad side effects that moves the phy_id.
DL10022-based cards work properly without 'mdio_reset'.

Signed-off-by:  <komurojun-mbn@nifty.com>

Signed-off-by: Jeff Garzik <jeff@garzik.org>