refactor: OPTIC-1510: remove a batch of ff

[luarmr]

Review commit by commit
A group of simple FF that were stale an we dice to remove them in the same pull request to avoid the conflict when merge.

fflag_fix_front_dev_4075_taxonomy_overlap_281222_short as True,

fflag_fix_back_lsdv_1044_check_annotations_24012023_short as False,

fflag_fix_font_lsdv_1148_hotkeys_namespaces_01022023_short as True,

fflag_feat_front_lsdv_4659_skipduplicates_060323_short as True
(skipduplicates_editing is referenced somehow here, so I take it down also in the last commit)

fflag_feat_front_lsdv_4661_full_uri_resolve_15032023_short as True
(white spaces here are relevant)

fflag_feat_front_lsdv_4712_skipduplicates_editing_110423_short as True

All of this are LSO only.

You may want to review commit by commit and with whitespace option enabled.
First commit is empty since I create a ticket to group this work

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 76.80%. Comparing base (8222cb5) to head (ce42e83).
Report is 11 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #6882   +/-   ##
========================================
  Coverage    76.80%   76.80%           
========================================
  Files          171      171           
  Lines        14031    14027    -4     
========================================
- Hits         10776    10774    -2     
+ Misses        3255     3253    -2     

Flag	Coverage Δ
pytests	76.80% <100.00%> (+<0.01%)	⬆️

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