Onlt await params in trio mode

tractor/_actor.py

@@ -576,6 +576,8 @@ class Actor:
                         # initial handshake, report who we are, who they are
                         await self._do_handshake(chan)
 
+                        if self._spawn_method == "trio":
+                            # recieve additional init params
                             self._parent_main_data = await chan.recv()
                             self.rpc_module_paths = await chan.recv()
                             self.statespace = await chan.recv()