aaa: ldap-core is not required outside of builtin extensions

Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=1120720
Change-Id: I3bbf363996d098e9dfba3b1b810a1884bb8d00f9
Signed-off-by: Alon Bar-Lev <alonbl@redhat.com>
aaa: builtin: remove redundant dependency

Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=1120720
Change-Id: I5c8ff04052585ae1bea2ab051172dcb1645918b0
Signed-off-by: Alon Bar-Lev <alonbl@redhat.com>