Remove mentions of Tidelift and CodeFund from documentation (python-t…

…rio#158)

README.rst

@@ -1,11 +1,3 @@
-.. raw:: html
-
-   <p align="center">
-      <a href="https://codefund.io/properties/451/visit-sponsor">
-         <img src="https://codefund.io/properties/451/sponsor" />
-      </a>
-   </p>
-
 urllib3
 =======
 
@@ -33,10 +25,6 @@ urllib3
         :alt: Gitter
         :target: https://gitter.im/python-urllib3/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge
 
-.. image:: https://tidelift.com/badges/github/urllib3/urllib3
-        :alt: Tidelift Dependencies
-        :target: https://tidelift.com/subscription/pkg/pypi-urllib3?utm_source=pypi-urllib3&utm_medium=referral&utm_campaign=docs
-
 .. image:: https://img.shields.io/badge/code%20style-black-000000.svg
     :target: https://github.com/psf/black
 
@@ -94,13 +82,6 @@ urllib3 happily accepts contributions. Please see our
 for some tips on getting started.
 
 
-Security Disclosures
---------------------
-
-To report a security vulnerability, please use the
-`Tidelift security contact <https://tidelift.com/security>`_.
-Tidelift will coordinate the fix and disclosure with maintainers.
-
 Maintainers
 -----------
 
@@ -118,22 +99,6 @@ Maintainers
 Sponsorship
 -----------
 
-.. |tideliftlogo| image:: https://nedbatchelder.com/pix/Tidelift_Logos_RGB_Tidelift_Shorthand_On-White_small.png
-   :width: 75
-   :alt: Tidelift
-
-.. list-table::
-   :widths: 10 100
-
-   * - |tideliftlogo|
-     - Professional support for urllib3 is available as part of the `Tidelift
-       Subscription`_.  Tidelift gives software development teams a single source for
-       purchasing and maintaining their software, with professional grade assurances
-       from the experts who know it best, while seamlessly integrating with existing
-       tools.
-
-.. _Tidelift Subscription: https://tidelift.com/subscription/pkg/pypi-urllib3?utm_source=pypi-urllib3&utm_medium=referral&utm_campaign=readme
-
 If your company benefits from this library, please consider `sponsoring its
 development <https://urllib3.readthedocs.io/en/latest/contributing.html#sponsorship-project-grants>`_.
 

docs/contributing.rst

@@ -99,40 +99,6 @@ named ``release-x.x`` where ``x.x`` is the version of the proposed release.
 Sponsorship
 -----------
 
-.. |tideliftlogo| image:: https://nedbatchelder.com/pix/Tidelift_Logos_RGB_Tidelift_Shorthand_On-White_small.png
-   :width: 75
-   :alt: Tidelift
-
-.. list-table::
-   :widths: 10 100
-
-   * - |tideliftlogo|
-     - Professional support for urllib3 is available as part of the `Tidelift
-       Subscription`_.  Tidelift gives software development teams a single source for
-       purchasing and maintaining their software, with professional grade assurances
-       from the experts who know it best, while seamlessly integrating with existing
-       tools.
-
-.. _Tidelift Subscription: https://tidelift.com/subscription/pkg/pypi-urllib3?utm_source=pypi-urllib3&utm_medium=referral&utm_campaign=docs
-
-Please consider sponsoring urllib3 development, especially if your company
-benefits from this library.
-
-Your contribution will go towards adding new features to urllib3 and making
-sure all functionality continues to meet our high quality standards.
-
-We also welcome sponsorship in the form of time. We greatly appreciate companies
-who encourage employees to contribute on an ongoing basis during their work hours.
-Please let us know and we'll be glad to add you to our sponsors list!
-
-A grant for contiguous full-time development has the biggest impact for
-progress. Periods of 3 to 10 days allow a contributor to tackle substantial
-complex issues which are otherwise left to linger until somebody can't afford
-to not fix them.
-
-Contact `@theacodes <https://github.com/theacodes>`_ or `@shazow <https://github.com/shazow>`_ 
-to arrange a grant for a core contributor.
-
 Huge thanks to all the companies and individuals who financially contributed to
 the development of urllib3. Please send a PR if you've donated and would like
 to be listed.