Simplified code

blink/sessions.py

@@ -1946,10 +1946,7 @@ class SessionManager(object):
                 for contact in (contact for contact in self.main_window.contact_model.iter_contacts() if self.number_re.match(contact.uri)):
                     if len(number) > 7 and self.normalize_number(session.account, contact.uri).endswith(number):
                         matched_contacts.append(contact)
-            if not matched_contacts or len(matched_contacts) > 1:
-                contact = None
-            else:
-                contact = matched_contacts[0]
+            contact = matched_contacts[0] if len(matched_contacts)==1 else None
         if filetransfer_streams:
             filetransfer_stream = filetransfer_streams[0]
         else: