Delete multiple entities using type is not working

[ArqamFarooqui110719]

Bug description
I am trying to delete multiple entities using type option in the scripts delete_entities_by_list.py and delete_entities_by_query.py , But I'm getting syntax error as below:

  File "delete_entities_by_list.py", line 88
    print '*** Error deleting entities (%d): %s' % (res.status_code, res.json())
          ^
SyntaxError: invalid syntax

• Orion version: 3.11.0

How to reproduce it
Run the script

python3 delete_entities_by_list.py

Expected behavior
Script should run successfully.

[ArqamFarooqui110719]

As per my investigation, the script is compatible with python2, it should be upgraded to python3.
So I'm raising a PR for the same.

[ArqamFarooqui110719]

PR #4508