Reverts snap conversions smart hashing change

[varadarajan-tw]

Reverts #2799

Testing

Testing not required as this is a revert PR

• Added unit tests for new functionality
• Tested end-to-end using the local server
• [If destination is already live] Tested for backward compatibility of destination. Note: New required fields are a breaking change.
• [Segmenters] Tested in the staging environment
• [Segmenters] [If applicable for this change] Tested for regression with Hadron.

[codecov]

Codecov Report

Attention: Patch coverage is 96.42857% with 1 line in your changes missing coverage. Please review.

Project coverage is 77.98%. Comparing base (11b02e8) to head (9542dc4).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...versions-api/reportConversionEvent/snap-capi-v3.ts	96.42%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2823      +/-   ##
==========================================
+ Coverage   77.97%   77.98%   +0.01%     
==========================================
  Files        1042     1042              
  Lines       19016    19008       -8     
  Branches     3706     3697       -9     
==========================================
- Hits        14827    14823       -4     
+ Misses       2886     2885       -1     
+ Partials     1303     1300       -3     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.