Description of problem:
Create non-scalable app with some addon cartridges added.
Do upgrade and migration, it will generate some symlinks in the gear home dir.
Remove the addon cartridge, the symlink will be left over.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1.Create non-scale app on devenv-stage_353
2.Add cartridges to the app
3.Do server upgrade and migration
4.Remove the addon cartridge from the app
5.SSH login to the gear and check the home dir
The symlink for the removed addon cartridge will be left over.
Symlink should be removed with the cartridge.