myri10ge: remove redundant assignment to variable status

Variable status is being assigned a value that is never read, it is
being re-assigned again later on. The assignment is redundant and can
be removed.

Cleans up clang scan build warning:
drivers/net/ethernet/myricom/myri10ge/myri10ge.c:582:7: warning: Although
the value stored to 'status' is used in the enclosing expression, the
value is never actually read from 'status' [deadcode.DeadStores]

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>