Revert "Improve constraints parsing"

[Schamper]

Reverts #37

tests/plugins/apps/browser/test_firefox.py in dissect.target is now failing.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 74.35%. Comparing base (065cb92) to head (1017212).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #38   +/-   ##
=======================================
  Coverage   74.35%   74.35%           
=======================================
  Files           5        5           
  Lines         507      507           
=======================================
  Hits          377      377           
  Misses        130      130           

Flag	Coverage Δ
unittests	74.35% <100.00%> (ø)

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