In version 4.2, there are only 7 .deb packages.
How do we know?
Each package's name appears in ./debian/control of the source tree. E.g.
Package: cloudstack-common
Architecture: all
Depends: bash, genisoimage, nfs-common
Conflicts: cloud-scripts, cloud-utils, cloud-system-iso, cloud-console-proxy, cloud-daemonize, cloud-deps, cloud-python, cloud-setup
Description: A common package which contains files which are shared by several CloudStack packages
If you look at the history of this file, you can see that the number of packages has reduced over time. For example, in version 4.0 there are 16 packages listed.