bgpd: remove some useless initializations

* bgp_attr.c: (bgp_attr_default_intern) bgp_attr_default_set() already
  initializes the memory. Fixes a struct attr_extra leak.
* bgp_route.c: Remove useless on stack struct initializations.

Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net>
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
2 files changed