Y26-021 Accessioning - removed accessioning check from work completion

[andrewsparkes]

Closes #5481

See also related deployment PR for removal of flag:
https://github.com/sanger/deployment/pull/800

Changes proposed in this pull request

• Removed accessioning check at work completion and when submitting for sequencing using a SequencingRequest.

Instructions for Reviewers

Deletion of unneeded code.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 87.30%. Comparing base (2f9b4d6) to head (6e0511d).

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #5538      +/-   ##
===========================================
- Coverage    87.35%   87.30%   -0.06%     
===========================================
  Files         1463     1461       -2     
  Lines        33005    32974      -31     
  Branches      3467     3460       -7     
===========================================
- Hits         28833    28787      -46     
- Misses        4151     4166      +15     
  Partials        21       21              

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[StephenHulme]

Nice!