Removed test_user_old.py from ui and cli

1. Removed test_user_old.py from UI and CLI
2. Note that test_user_old.py was implemented from MetaCLI.  So I merged all the changes to test_user.py but removed the inheritance of MetaCLI. It is upto the test implementer to see if we still need MetaCLI or not.
3. For UI also - it had old org UI tests.  I merged them into test_org.py. It is upto the test implementer to see if we still need them or if they are covered in new tests.