w5300: remove unused driver

Unlike w5100, this driver does not support SPI mode or devicetree
bindings, and is hence entirely unusable without third-party board
support patches that likely haven't existed for any recent kernel
version.

Remove the entire driver.

If anyone is in fact using it with their custom board files, they
can bring it back and include an earlier patch I sent to add
DT based probing for the GPIO lines.

Link: https://lore.kernel.org/all/20260427142924.2702598-1-arnd@kernel.org/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patch.msgid.link/20260505180459.1247690-2-arnd@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

0 files changed, 0 insertions, 0 deletions