Drop unneeded requirements from tornado test-requirements

[xrmx]

Describe your environment

OS: (e.g, Ubuntu)
Python version: (e.g., Python 3.8.10)
Package version: (e.g., 0.46.0)

What happened?

Double check that the following libraries are required in tornado test-requirements:

blinker==1.7.0
Flask==3.0.2
itsdangerous==2.1.2
Jinja2==3.1.4
MarkupSafe==2.1.2
Werkzeug==3.0.6

Looks like they have been copied from a flask test-requirements file.

Steps to Reproduce

Look at tornado instrumentation test-requirements.txt

Expected Result

No flask related library present

Actual Result

Flask related libraries are there

Additional context

No response

Would you like to implement a fix?

No

[rahulhacker]

@xrmx : Can you please assign this to me??

[xrmx]

@rahulhacker When you have time to work on this just add a comment here and we'll consider this assigned to you for a week.

[rahulhacker]

@xrmx : sure thanks for the response

[rahulhacker]

@xrmx :
All these libraries belongs to the flask, but let me run the test cases after removing it.
Once confirmed will raise the PR

1. blinker: A library for creating signals, often used in Flask for event handling.
2. Flask: A lightweight WSGI web framework, unrelated to Tornado.
3. itsdangerous: A library for securely signing data, used internally by Flask.
4. Jinja2: A templating engine used by Flask for rendering HTML templates.
5. MarkupSafe: A library for escaping text in templates, used by Jinja2.
6. Werkzeug: A WSGI utility library, used as the foundation of Flask.