net: Remove unlikely() for WARN_ON() conditions

No need for the unlikely(), WARN_ON() and BUG_ON() internally use
unlikely() on the condition.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/core/dev.c

@@ -2326,7 +2326,7 @@ __be16 skb_network_protocol(struct sk_buff *skb, int *depth)
 	 */
 	if (type == htons(ETH_P_8021Q) || type == htons(ETH_P_8021AD)) {
 		if (vlan_depth) {
-			if (unlikely(WARN_ON(vlan_depth < VLAN_HLEN)))
+			if (WARN_ON(vlan_depth < VLAN_HLEN))
 				return 0;
 			vlan_depth -= VLAN_HLEN;
 		} else {

net/openvswitch/datapath.h

@@ -144,7 +144,7 @@ int lockdep_ovsl_is_held(void);
 #define lockdep_ovsl_is_held()	1
 #endif
 
-#define ASSERT_OVSL()		WARN_ON(unlikely(!lockdep_ovsl_is_held()))
+#define ASSERT_OVSL()		WARN_ON(!lockdep_ovsl_is_held())
 #define ovsl_dereference(p)					\
 	rcu_dereference_protected(p, lockdep_ovsl_is_held())
 #define rcu_dereference_ovsl(p)					\