switch out xdrlib to mda_xdrlib

[IAlibay]

Fixes #3934

Changes made in this Pull Request:

• switch out the one xdrlib usage to mda_xdrlib
• remove unused import

PR Checklist

• Tests?
• Docs?
• CHANGELOG updated?
• Issue raised/referenced?

Developers certificate of origin

• I certify that this contribution is covered by the LGPLv2.1+ license as defined in our LICENSE and adheres to the Developer Certificate of Origin.

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📚 Documentation preview 📚: https://mdanalysis--4271.org.readthedocs.build/en/4271/

[github-actions]

Linter Bot Results:

Hi @IAlibay! Thanks for making this PR. We linted your code and found the following:

There are currently no issues detected! 🎉

[codecov]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (096fee7) 93.39% compared to head (7e73e7a) 93.39%.

Additional details and impacted files

@@            Coverage Diff             @@
##           develop    #4271     +/-   ##
==========================================
  Coverage    93.39%   93.39%             
==========================================
  Files          170      184     +14     
  Lines        22225    23332   +1107     
  Branches      4065     4065             
==========================================
+ Hits         20758    21792   +1034     
- Misses         951     1024     +73     
  Partials       516      516             

Files Changed	Coverage Δ
package/MDAnalysis/topology/TPRParser.py	90.16% <ø> (-0.16%)	⬇️
package/MDAnalysis/topology/tpr/utils.py	95.48% <100.00%> (ø)

... and 14 files with indirect coverage changes

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[orbeckst]

LGTM, thank you for making it work!!

[orbeckst]

Not sure why one azure runner timed out.

[IAlibay]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).