RLG-Web server: code cleanup.

Delete some TermSession code left over from the first attempt at
Websockets.  Also don't bother logging the disconnection of watchers
after the game has ended.

rlgwebd.js

@@ -131,8 +131,6 @@ function TermSession(game, lkey, dims, handlers) {
    * with a complete screen. */
   this.framebuf = new Buffer(1024);
   this.frameoff = 0;
-  /* List of WebSockets watching the game. */
-  this.watchsocks = [];
   logins[lkey].sessions.push(this.sessid);
   /* END setup */
   function ttyrec_chunk(datastr) {
@@ -171,21 +169,6 @@ function TermSession(game, lkey, dims, handlers) {
   this.write = function(data) {
     this.term.write(data);
   };
-  // WebSocket watchers.
-  this.addWS = function (conn) {
-    this.watchsocks.push(conn);
-  };
-  this.removeWS = function (conn) {
-    var i = this.watchsocks.indexOf(conn);
-    if (i >= 0) {
-      if (conn.connected)
-        conn.close();
-      this.watchsocks.splice(i, 1);
-      return true;
-    }
-    else
-      return false;
-  };
   // Teardown.
   this.term.on("exit", function () {
     fs.unlink(ss.lock);
@@ -388,6 +371,7 @@ function wsWatcher(conn, session) {
   conn.on('close', function(code, desc) {
     session.removeListener('data', dataH);
     session.removeListener('exit', exitH);
+    if (session.sessid in sessions)
       tslog("A WebSocket watcher has left game %d", session.sessid);
   });
   conn.sendUTF(JSON.stringify({