w5100: remove unused gpio link detection

Since the platform_device support is now gone, nothing ever passes a
valid gpio number, and all the link state handling can go away.

An earlier version of my patch changed this to look up the GPIO descriptor
from devicetree and convert it all to the modern interface, but there
are no users of that binding at the moment.

Remove the gpio handling, which is now one of the last users of the
legacy gpio interface in platform-independent code.

Cc: Rob Herring <robh@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/all/20230127095839.3266452-1-arnd@kernel.org/
Link: https://patch.msgid.link/20260505180459.1247690-3-arnd@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

0 files changed, 0 insertions, 0 deletions