addr: Remove a BUG() that can normally occur
Fix on unreleased code.
The relay_new_address_suggestion() is called when a NETINFO cell is received thus not only for relay or bridges.
Remove the BUG() that made sure only in server mode we could handle the suggested address.
Fixes #40032 (closed)
Signed-off-by: David Goulet dgoulet@torproject.org