chore: Remove blockaid env variable

[jpuri]

Description

Remove bloackaid env var from mobile code.

Related issues

Fixes: https://github.com/MetaMask/mobile-planning/issues/1629

Manual testing steps

1. Remove blockaid env var from local
2. Start mobile app
3. Blockaid validations should work as before

Screenshots/Recordings

NA

Pre-merge author checklist

• I’ve followed MetaMask Contributor Docs and MetaMask Mobile Coding Standards.
• I've completed the PR template to the best of my ability
• I’ve included tests if applicable
• I’ve documented my code using JSDoc format if applicable
• I’ve applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Pre-merge reviewer checklist

• I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.

[github-actions]

CLA Signature Action: All authors have signed the CLA. You may need to manually re-run the blocking PR check if it doesn't pass in a few minutes.

[github-actions]

Bitrise

✅✅✅ pr_smoke_e2e_pipeline passed on Bitrise! ✅✅✅

Commit hash: 34b9cee
Build link: https://app.bitrise.io/app/be69d4368ee7e86d/pipelines/a1d9dca2-5c57-4972-897e-72d26210e4e1

Note

• You can kick off another pr_smoke_e2e_pipeline on Bitrise by removing and re-applying the Run Smoke E2E label on the pull request

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 88.88889% with 1 line in your changes missing coverage. Please review.

Project coverage is 49.67%. Comparing base (ea14ef7) to head (34b9cee).
Report is 13 commits behind head on main.

Files	Patch %	Lines
app/components/UI/WhatsNewModal/whatsNewList.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #10215      +/-   ##
==========================================
+ Coverage   49.50%   49.67%   +0.17%     
==========================================
  Files        1438     1444       +6     
  Lines       34674    34728      +54     
  Branches     3853     3852       -1     
==========================================
+ Hits        17166    17252      +86     
+ Misses      16426    16396      -30     
+ Partials     1082     1080       -2     

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