Fix "make uninstall" and "make reinstall"
Fix "make uninstall" and "make reinstall"

The "oasis setup.ml -uninstall" command isn't doing what we need, so
fall back to using ocamlfind directly.

Signed-off-by: David Scott <63c9eb0ea83039690fefa11afe17873ba8278a56@eu.citrix.com>

thomassa/xen-api-libs-transitional