6LoWPAN: disable debugging by default

This patch disables debug output enabled by default.
Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
Acked-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ieee802154/6lowpan.c

@@ -50,8 +50,6 @@
  * SUCH DAMAGE.
  */
 
-#define DEBUG
-
 #include <linux/bitops.h>
 #include <linux/if_arp.h>
 #include <linux/module.h>