Revert "p2p: connect via the bound ip, if any"

This reverts commit 909398efc7.

It looks like it's causing trouble with tor on some setups

src/p2p/net_node.inl

@@ -937,7 +937,7 @@ namespace nodetool
     bool res = m_net_server.connect(epee::string_tools::get_ip_string_from_int32(ipv4.ip()),
       epee::string_tools::num_to_string_fast(ipv4.port()),
       m_config.m_net_config.connection_timeout,
-      con, m_bind_ip.empty() ? "0.0.0.0" : m_bind_ip);
+      con);
 
     if(!res)
     {
@@ -1002,7 +1002,7 @@ namespace nodetool
     bool res = m_net_server.connect(epee::string_tools::get_ip_string_from_int32(ipv4.ip()),
                                     epee::string_tools::num_to_string_fast(ipv4.port()),
                                     m_config.m_net_config.connection_timeout,
-                                    con, m_bind_ip.empty() ? "0.0.0.0" : m_bind_ip);
+                                    con);
 
     if (!res) {
       bool is_priority = is_priority_node(na);
@@ -1617,7 +1617,7 @@ namespace nodetool
         return false;
       }
       return true;
-    }, m_bind_ip.empty() ? "0.0.0.0" : m_bind_ip);
+    });
     if(!r)
     {
       LOG_WARNING_CC(context, "Failed to call connect_async, network error.");