sysprof should not be visible in non-developer VMs
sysprof is part of meta-gnome-core-developer-tools so it should only be visible in VMs once developer mode is enabled, not before that. Problem is it's a dep of mutter. I think we should split the desktop file into a second bst element such that the desktop file itself can be part of core but the supporting bits go into sdk-deps (to allow use by libsoup, WebKit, etc., see a9580294).