remove inexistent features from units.json

[AurelienJaquier]

Description

Those features were originally in the 'Requested eFeatures' part of the documentation and were wrongly added to the units.json. This corrects it and removes those nonexistent features.

Checklist:

• Unit tests are added to cover the changes (skip if not applicable).
• The changes are mentioned in the documentation (skip if not applicable).
• CHANGELOG file is updated (skip if not applicable).

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.84%. Comparing base (2cddd26) to head (b2ec8fe).
Report is 20 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #398      +/-   ##
==========================================
+ Coverage   91.73%   91.84%   +0.11%     
==========================================
  Files          36       37       +1     
  Lines        6278     7113     +835     
  Branches     2033     2282     +249     
==========================================
+ Hits         5759     6533     +774     
- Misses        266      301      +35     
- Partials      253      279      +26     

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