Here is a list of items that should probably be removed from Central catalog:

EGit: Egit is already included in all Eclipse packages we target (JEE, Standard, PDE, if not all) and is included in JBDS product definition. It is also a dependency of OpenShift tooling so that anything that has OpenShift tools installed is guaranteed to have EGit installed.
So we should remove EGit from our Central discovery catalogs.

jst.server is already installed in JBDS, so there is no point in having it on JBDS Central