Removed link local address verifycation and dead code.

Change-Id: Ic9d53279f16f3685fb3abaa0f772d5016062f0eb

Author: Juha Heiskanen

source/RPL/rpl_control.c

@@ -204,7 +204,7 @@ void rpl_control_address_register_done(struct buffer *buf, uint8_t status)
     ns_list_foreach(if_address_entry_t, addr, &buf->interface->ip_addresses) {
 
         /* Optimize, ll addresses are not registered anyway.. */
-        if (addr_is_ipv6_link_local(addr->address) || !addr->addr_reg_pend) {
+        if (!addr->addr_reg_pend) {
             continue;
         }
 

source/RPL/rpl_downward.c

@@ -656,7 +656,7 @@ static bool rpl_instance_dao_address_reg_pending_check(rpl_instance_t *instance)
     ns_list_foreach(if_address_entry_t, addr, &cur->ip_addresses) {
 
         /* Optimize, ll addresses are not registered anyway.. */
-        if (!addr_is_ipv6_link_local(addr->address)  && addr->addr_reg_pend) {
+        if (addr->addr_reg_pend) {
             return true;
         }
     }