Remove unused policy code

[AmaliMatharaarachchi]

Purpose

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Training

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Certification

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Security checks

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• Ran FindSecurityBugs plugin and verified report? yes/no
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[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 28.36%. Comparing base (64893bb) to head (dabc55e).
Report is 18 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2157      +/-   ##
==========================================
+ Coverage   27.95%   28.36%   +0.41%     
==========================================
  Files         124       83      -41     
  Lines       14583     6010    -8573     
  Branches     2672     2681       +9     
==========================================
- Hits         4076     1705    -2371     
+ Misses      10376     4305    -6071     
+ Partials      131        0     -131     

Flag	Coverage Δ
adapter	?
common-controller	4.07% <ø> (ø)
config-deployer-service	25.99% <ø> (-0.04%)	⬇️
idp-domain-service	80.21% <ø> (ø)
router	?

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[AmaliMatharaarachchi]

Closing as it was discussed to keep this adapter level request response modifications