ws server: drop support for old tracker clients

old clients don’t send params.action === ‘action’

Author: feross

lib/server/parse-websocket.js

@@ -8,7 +8,7 @@ function parseWebSocketRequest (socket, opts, params) {
 
   params.type = 'ws'
   params.socket = socket
-  if (params.action === 'announce' || params.offers || params.answer) {
+  if (params.action === 'announce') {
     params.action = common.ACTIONS.ANNOUNCE
 
     if (typeof params.info_hash !== 'string' || params.info_hash.length !== 20) {