Remove old backward compatibility logic for coupons

[Crabcyborg]

No description provided.

[deepsource-io]

DeepSource Code Review

We reviewed changes in e5bfaa1...576a819 on this pull request. Below is the summary for the review, and you can see the individual issues we found as inline review comments.

See full review on DeepSource ↗

PR Report Card

Overall Grade

Security   Reliability   Complexity   Hygiene

Code Review Summary

Analyzer	Status	Updated (UTC)	Details
PHP		Mar 31, 2026 3:32p.m.	Review ↗
JavaScript		Mar 31, 2026 3:32p.m.	Review ↗

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: a1d55326-bb02-4586-8ff0-525f393938b9

📥 Commits

Reviewing files that changed from the base of the PR and between e5bfaa1 and 576a819.

📒 Files selected for processing (1)

• classes/helpers/FrmAppHelper.php

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch remove_old_backward_compatibility_check

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[codecov]

Codecov Report

❌ Patch coverage is 0% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 26.61%. Comparing base (7058fde) to head (576a819).
⚠️ Report is 101 commits behind head on master.

Files with missing lines	Patch %	Lines
classes/helpers/FrmAppHelper.php	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             master    #3054    +/-   ##
==========================================
  Coverage     26.60%   26.61%            
- Complexity     8917     9072   +155     
==========================================
  Files           145      148     +3     
  Lines         30018    30444   +426     
==========================================
+ Hits           7987     8103   +116     
- Misses        22031    22341   +310     

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