net: jme: remove unused initialization of 'rxdesc'

Pointer rxdesc is assigned a value that is never read, it is overwritten
by a new assignment inside a while loop hence the initial assignment
is redundant and can be removed.

Cleans up clang warning:
drivers/net/ethernet/jme.c:1074:17: warning: Value stored to 'rxdesc'
during its initialization is never read
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/jme.c

@@ -1071,7 +1071,7 @@ static int
 jme_process_receive(struct jme_adapter *jme, int limit)
 {
 	struct jme_ring *rxring = &(jme->rxring[0]);
-	struct rxdesc *rxdesc = rxring->desc;
+	struct rxdesc *rxdesc;
 	int i, j, ccnt, desccnt, mask = jme->rx_ring_mask;
 
 	if (unlikely(!atomic_dec_and_test(&jme->rx_cleaning)))