[Bug 352999] test performance patch applied to jetty-client, thanks Thomas

VERSION.txt

@@ -7,6 +7,7 @@ jetty-7.5.0-SNAPSHOT
  + 352421 HttpURI paths beginning with '.'
  + 352684 Implemented spinning thread analyzer
  + 352786 GzipFilter fails to pass parameters to GzipResponseWrapper
+ + 352999 ExpireTest running too long
  + 353073 WebSocketClient
  + 353095 maven-jetty-plugin: PermGen leak due to javax.el.BeanELResolver
  + 353165 addJars can follow symbolic link jar files

jetty-client/src/test/java/org/eclipse/jetty/client/ExpireTest.java

@@ -16,7 +16,6 @@ package org.eclipse.jetty.client;
 import static org.junit.Assert.assertTrue;
 
 import java.io.IOException;
-import java.io.InterruptedIOException;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.TimeUnit;
 
@@ -105,7 +104,6 @@ public class ExpireTest
             exchange.setURL(baseUrl);
 
             client.send(exchange);
-            Thread.sleep(50);
         }
 
         // Wait to be sure that all exchanges have expired