drivers/net/: remove write-only "last_dev"

This patch removes write-only global "last_dev" variables from the
following drivers:
- a2065.c
- declance.c
- sunlance.c

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
3 files changed