fix(platform): Remove migrate and encrypt function

[aarushik93]

Our understanding of the code is as follows:

if we have 100 users, we'll do 100 SQL separate requests. Can we avoid doing this on each run or remove this altogether?

the migration part was meant to be for solving the issue we had 2 weeks ago only, not permanently in the codebase.

Confirmed with @ntindle it's okay to remove.

See discussion.

Changes 🏗️

Removed the migrate_and_encrypt_user_integrations function and it's relevant reference.

Checklist 📋

For code changes:

• I have clearly listed my changes in the PR description
• I have made a test plan
• I have tested my changes according to the test plan:
  • ...

Example test plan

• Create from scratch and execute an agent with at least 3 blocks
• Import an agent from file upload, and confirm it executes correctly
• Upload agent to marketplace
• Import an agent from marketplace and confirm it executes correctly
• Edit an agent from monitor, and confirm it executes correctly

For configuration changes:

• .env.example is updated or already compatible with my changes
• docker-compose.yml is updated or already compatible with my changes
• I have included a list of my configuration changes in the PR description (under Changes)

Examples of configuration changes

• Changing ports
• Adding new services that need to communicate with each other
• Secrets or environment variable changes
• New or infrastructure changes such as databases

[qodo-merge-pro]

PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

⏱️ Estimated effort to review: 1 🔵⚪⚪⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ Recommended focus areas for review Data Migration Removal of migration function could impact existing users who haven't had their integration credentials migrated yet. Verify that all users have already been migrated before removing this code.

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