Disabling EGit Github contribution

Change-Id: I171452a45506454a7d9a6cef001c34efe19fba0e
Signed-off-by: Mikael Barbero <mikael.barbero@eclipse-foundation.org>
diff --git a/egit.aggrcon b/egit.aggrcon
index 2f52d7d..5eb20f2 100644
--- a/egit.aggrcon
+++ b/egit.aggrcon
@@ -18,7 +18,7 @@
       <categories href="simrel.aggr#//@customCategories[identifier='Collaboration']"/>
     </features>
   </repositories>
-  <repositories location="http://download.eclipse.org/egit/github/staging/v5.0.0.201805151920-m7" description="EGit GitHub Updates">
+  <repositories enabled="false" location="http://download.eclipse.org/egit/github/staging/v5.0.0.201805151920-m7" description="EGit GitHub Updates">
     <features name="org.eclipse.mylyn.github.feature.feature.group" versionRange="[5.0.0.201805151920-m7]">
       <categories href="simrel.aggr#//@customCategories[identifier='Collaboration']"/>
     </features>