removed Oomph composite update site

Change-Id: I85511165ad35826e4ed5d5f4eb7259f40e2816b2
diff --git a/devtools/org.eclipse.emf.parsley.oomph/EMFParsley.setup b/devtools/org.eclipse.emf.parsley.oomph/EMFParsley.setup
index 183bb2d..7d7628c 100644
--- a/devtools/org.eclipse.emf.parsley.oomph/EMFParsley.setup
+++ b/devtools/org.eclipse.emf.parsley.oomph/EMFParsley.setup
@@ -282,8 +282,6 @@
           name="org.eclipse.oomph.setup.workbench.feature.group"/>
       <requirement
           name="org.eclipse.oomph.setup.workingsets.feature.group"/>
-      <repository
-          url="http://download.eclipse.org/oomph/updates/"/>
     </setupTask>
     <setupTask
         xsi:type="setup.p2:P2Task"