eth: sun: cassini: remove dead code

stable inclusion
from stable-v5.10.183
commit 99cb5ed15d3e1aedcfcc2c5b6a8d3cec72fd3a3f
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I8IRR2

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=99cb5ed15d3e1aedcfcc2c5b6a8d3cec72fd3a3f



--------------------------------

commit 32329216 upstream.

Fixes the following GCC warning:

drivers/net/ethernet/sun/cassini.c:1316:29: error: comparison between two arrays [-Werror=array-compare]
drivers/net/ethernet/sun/cassini.c:3783:34: error: comparison between two arrays [-Werror=array-compare]

Note that 2 arrays should be compared by comparing of their addresses:
note: use ‘&cas_prog_workaroundtab[0] == &cas_prog_null[0]’ to compare the addresses

Signed-off-by: Martin Liska <mliska@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: sanglipeng <sanglipeng1@jd.com>