fix WebSocketStatsTest numMessages back to 1000

Remove server getConnections check after client open event
as the server connection may not be open yet.

Signed-off-by: Lachlan Roberts <lachlan@webtide.com>

jetty-websocket/jetty-websocket-tests/src/test/java/org/eclipse/jetty/websocket/tests/WebSocketStatsTest.java

@@ -123,11 +123,10 @@ public void echoStatsTest() throws Exception
         EventSocket socket = new EventSocket();
         Future<Session> connect = client.connect(socket, uri);
 
-        final long numMessages = 1;
+        final long numMessages = 1000;
         final String msgText = "hello world";
         try (Session session = connect.get(5, TimeUnit.SECONDS))
         {
-            assertThat(statistics.getConnections(), is(1L));
             for (int i = 0; i < numMessages; i++)
             {
                 session.getRemote().sendString(msgText);