Remove unnecessary functionality in `tarantoolctl`

After completing the work on #400 , we performed the migration of tarantoolctl (a complete file, with all the functions and methods).

This is unnecessarily large functionality that will soon not be supported (only within the framework of test-run).

1. find out what methods and functions are involved in test-run;
2. remove all unnecessary from the file;
3. test that nothing was broken.