remove default expiry in jwt token

lib/units/websocket/index.js

@@ -337,15 +337,13 @@ module.exports = function(options) {
           dbapi.resetUserSettings(user.email)
         })
         .on('user.keys.accessToken.generate', function(data) {
-          var expiry = Date.now() + 100 * 365 * 24 * 3600
-            , jwt = jwtutil.encode({
-                payload: {
-                  email: user.email
-                , name: user.name
-                }
-              , secret: options.secret
-              , expiry: expiry
-            })
+          var jwt = jwtutil.encode({
+            payload: {
+              email: user.email
+            , name: user.name
+            }
+          , secret: options.secret
+          })
 
           var tokenId = uuid.v4()
             , title = data.title