ipaddress: Only check address origin for delete

We don't need to check the parent interface or anything, just check to
see if the source of the address is static or not. We are only able to
delete static addresses from the configuration currently.

Change-Id: I82bc492c8c39ca2b8703cbde8df7f8fbb5187c6e
Signed-off-by: William A. Kennington III <wak@google.com>
1 file changed