Delete deprecated code in django 5.2

[submarcos]

Description

Related Issue

Checklist

• I have followed the guidelines in our Contributing document
• My code respects the Definition of done available in the Development section of the documentation
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works.
• New and existing unit tests pass locally with my changes
• I added an entry in the changelog file
• My commits are all using prefix convention (emoji + tag name) and references associated issues
• I added a label to the PR corresponding to the perimeter of my contribution
• The title of my PR mentionned the issue associated

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.47%. Comparing base (b4ad9df) to head (bd5c0f7).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #4536   +/-   ##
=======================================
  Coverage   98.47%   98.47%           
=======================================
  Files         270      270           
  Lines       21523    21534   +11     
=======================================
+ Hits        21194    21205   +11     
  Misses        329      329           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[cypress]

Geotrek-admin    Run #11264

Run Properties:   Passed #11264  •  6a323e477f ℹ️: Merge bd5c0f7f7a3343fbc0444f853795a7564c89832c into b4ad9dfecdc17e0ba440e09c0599...

Project	Geotrek-admin
Branch Review	refs/pull/4536/merge
Run status	Passed #11264
Run duration	02m 06s
Commit	6a323e477f ℹ️: Merge bd5c0f7f7a3343fbc0444f853795a7564c89832c into b4ad9dfecdc17e0ba440e09c0599...
Committer	Jean-Etienne Castagnede
View all properties for this run ↗︎

---

Test results
Failures	0
Flaky	0
Pending	0
Skipped	0
Passing	22
View all changes introduced in this branch ↗︎