Remove misleading comment

Signed-off-by: Piotrek Zygielo <piotr@zygielo.pl>
diff --git a/Jenkinsfile b/Jenkinsfile
index 1b6247f..b6edc0a 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2019 Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2020 Contributors to Eclipse Foundation. All rights reserved.
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License v. 2.0, which is available at
@@ -23,7 +24,7 @@
     skipStagesAfterUnstable()
     // show timestamps in logs
     timestamps()
-    // global timeout, abort after 6 hours
+    // global timeout
     timeout(time: 20, unit: 'MINUTES')
   }
   agent {