DB Import and Class Generation from Project is performed for removed datamaps

1. Add 2 datamaps
2. Configure db import for both and run import
3. Generate classes in both datamaps
4. Remove one datamap, save
5. Click on Project and make sure DB Import and Class Generation tab have only one datamap and it is selected -> OK
6. Run DB Import and Generate Classes from Project 'level'

-> db import and class generation is performed for both, removed and selected datamaps