[IPV6]: fix section mismatch warnings

Removed useless and buggy __exit section in the different
ipv6 subsystems. Otherwise they will be called inside an
init section during rollbacking in case of an error in the
protocol initialization.

Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv6/raw.c

@@ -1321,7 +1321,7 @@ out:
 	return ret;
 }
 
-void __exit rawv6_exit(void)
+void rawv6_exit(void)
 {
 	inet6_unregister_protosw(&rawv6_protosw);
 }