AT:

• the dmn model generator is used in all decision/dmn test files to generate the dmn tables
• all dmn files that were used for the tests are being removed

Context:
In all dmn/decision test classes we used xml files to deploy dmn files and test that Optimize works correctly with decision. With OPT-2460 we introduced the generator that allows to create the tables programmatically, which makes it easier to see how the table looks like and get rid of a lot of xml clutter.