Remove FFDHE and SECLEVEL python test patches

[WillChilds-Klein]

Description of changes:

Two recent upstream CPython PRs removed the need for patching around our lack of support for FFDHE TLS ciphersuites and non-0 SECLEVEL values.

Call-outs:

n/a

Testing:

• local
• CI

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By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license and the ISC license.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.73%. Comparing base (b1420f2) to head (1284e2e).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2307   +/-   ##
=======================================
  Coverage   78.72%   78.73%           
=======================================
  Files         616      616           
  Lines      107584   107584           
  Branches    15286    15286           
=======================================
+ Hits        84700    84701    +1     
+ Misses      22230    22227    -3     
- Partials      654      656    +2     

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