Config: Remove more legacy fields (#3817)

proxy/dokodemo/config.proto

@@ -13,13 +13,9 @@ message Config {
   xray.common.net.IPOrDomain address = 1;
   uint32 port = 2;
 
-  // List of networks that the Dokodemo accepts.
-  // Deprecated. Use networks.
-  xray.common.net.NetworkList network_list = 3 [deprecated = true];
   // List of networks that the Dokodemo accepts.
   repeated xray.common.net.Network networks = 7;
 
-  uint32 timeout = 4 [deprecated = true];
   bool follow_redirect = 5;
   uint32 user_level = 6;
 }