Description of problem:
Some monitoring packages if removed cannot be installed again. More precise
theirs post scriplets will fail.

Version-Release number of selected component (if applicable):
510

How reproducible:
deterministic

Steps to Reproduce:
1. install proxy with monitoring
2. remove proxy + remove packages
3. install proxy with monitoring again
  
Actual results:
  28:NPalert                ########################################### [100%]
ln: `/opt/notification/var/generate_config.log': File exists
ln: `/opt/notification/var/notif-escalator.log': File exists
ln: `/opt/notification/var/notif-launcher.log': File exists
ln: `/opt/notification/var/notifier.log': File exists
ln: `/opt/notification/var/ack-processor.log': File exists
ln: `/opt/notification/var/NotifEscalator-error.log': File exists
ln: `/opt/notification/var/NotifLauncher-error.log': File exists
ln: `/opt/notification/var/Notifier-error.log': File exists
ln: `/opt/notification/var/AckProcessor-error.log': File exists
error: %post(NPalert-1.125.17-17.noarch) scriptlet failed, exit status 1
  29:perl-BSD-Resource      ########################################### [100%]
  30:mod_perl               ########################################### [100%]
  31:perl-Params-Validate   ########################################### [100%]
  32:rhn-base-minimal       ########################################### [100%]
  33:oracle_perl            ########################################### [100%]
  34:FcntlLock              ########################################### [100%]
  35:bdb_perl               ########################################### [100%]
  36:scdb                   ########################################### [100%]
  37:tsdb                   ########################################### [100%]
ln: `/home/nocpulse/var/TSDBLocalQueue.log': File exists
ln: `/home/nocpulse/var/TSDBLocalQueue-errors.log': File exists
error: %post(tsdb-1.27.13-17.noarch) scriptlet failed, exit status 1


  85:nslogs                 ########################################### [100%]
mv: `/home/nocpulse/var/kernel.log' and `/var/log/nocpulse/kernel.log' are the
same file
ln: `/home/nocpulse/var/kernel.log': File exists
mv: `/home/nocpulse/var/kernel-error.log' and
`/var/log/nocpulse/kernel-error.log' are the same file
ln: `/home/nocpulse/var/kernel-error.log': File exists
mv: `/home/nocpulse/var/dequeue.log' and `/var/log/nocpulse/dequeue.log' are the
same file
ln: `/home/nocpulse/var/dequeue.log': File exists
ln: `/home/nocpulse/var/dequeue.snmp.log': File exists
ln: `/home/nocpulse/var/trapReceiver.log': File exists
ln: `/home/nocpulse/var/SuperSput-errors.log': File exists
mv: `/home/nocpulse/var/SputLite-errors.log' and
`/var/log/nocpulse/SputLite-errors.log' are the same file
ln: `/home/nocpulse/var/SputLite-errors.log': File exists
mv: `/home/nocpulse/var/Dequeuer-errors.log' and
`/var/log/nocpulse/Dequeuer-errors.log' are the same file
ln: `/home/nocpulse/var/Dequeuer-errors.log': File exists
ln: `/home/nocpulse/var/TrapReceiver-errors.log': File exists
ln: `/home/nocpulse/var/DiscoveryServices-errors.log': File exists
mv: `/home/nocpulse/var/commands/execute_commands.log' and
`/var/log/nocpulse/execute_commands.log' are the same file
ln: `/home/nocpulse/var/commands/execute_commands.log': File exists
error: %post(nslogs-2.2.2-6.noarch) scriptlet failed, exit status 1



Expected results:
Run smoothly

Additional info: