pytest: only use dev-allow-localhost when needed.

The next patches get better at reconecting, so if we use dev-allow-localhost
nodes can often find each other and reconnect before shutting down; only
use that option where we actually need it.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

tests/utils.py

@@ -317,8 +317,6 @@ class LightningD(TailableProc):
         if DEVELOPER:
             self.opts['dev-broadcast-interval'] = 1000
             self.opts['dev-bitcoind-poll'] = 1
-            # lightningd won't announce non-routable addresses by default.
-            self.opts['dev-allow-localhost'] = None
         self.prefix = 'lightningd-%d' % (node_id)
 
         filters = [