Description of problem:
There were couple of packages decommissioned in past Satellite releases that
persist in the system even after the upgrade. With Satellite 5.3.0 many
packages were renamed and some of the renamed packages do not provide packages
that they obsolete (reason: they are not backward compatible) -- for example
np-config & NPusers are being obsoleted (but not provided) by nocpulse-common.

Presence of these packages may cause problems when doing upgrades (package
upgrade part). Satellite installer (install.pl) needs to remove these packages
from system before it starts with the actual package upgrade.

List of decommissioned packages that need to be removed:
* LongLegs
* Time-System
* bdb_perl
* aspectwerkz
* attrib4j
* ehcache
* FcntlLock
* perl-Mail-Alias
* saxpath
* scdb_accessor_perl
* tsdb_accessor_perl
* perl-Business-CreditCard
* perl-Class-Factory-Util
* perl-Crypt-CAST5_PP
* perl-Crypt-Rijndael

Version-Release number of selected component (if applicable):
Satellite 5.3.0

How reproducible:
Always

Steps to Reproduce:
1. Install Satellite 3.7.1 on RHEL-4
2. Upgrade it all the way to some of the recent 5.3.0 snapshots
3. Check that none of the packages listed above is present
  
Actual results:
N/A

Expected results:
N/A

Additional info:
Satellite installer (install.pl) should ask the user if one wishes to have
these packages (or at least those from the list present in the system) removed
and print a warning message in case the answer is no.