revert "drivers/net/tulip/dmfe: support basic carrier detection"

revert "drivers/net/tulip/dmfe: support basic carrier detection"

Revert 50ee16ae1810e646c34386ad767c44250e427128.  Thomas Bachler
reports:

  Commit 50ee16ae1810e646c34386ad767c44250e427128 (drivers/net/tulip/dmfe:
  support basic carrier detection) breaks networking on my Davicom DM9009.
  ethtool always reports there is no link.  tcpdump shows incoming packets,
  but TX is disabled.  Reverting the above patch fixes the problem.

Cc: Samuel Thibault <samuel.thibault@ens-lyon.org>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Valerie Henson <val_henson@linux.intel.com>
Cc: Thomas Bachler <thomas@archlinux.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>