[Dynamic Links] Remove the Dynamic Links library

[a-maurice]

Description

Provide details of the change, and generalize the change in the PR title above.

Remove the deprecated Dynamic Links library. Also, removed some lingering parts of Invites, and added AI Logic to a couple of the files it was missing from.

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Testing

Describe how you've tested these changes.

https://github.com/firebase/firebase-unity-sdk/actions/runs/16012750084

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Type of Change

Place an x the applicable box:

• Bug fix. Add the issue # below if applicable.
• New feature. A non-breaking change which adds functionality.
• Other, such as a build process or documentation change.

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[gemini-code-assist]

Summary of Changes

Hello @a-maurice, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request primarily focuses on removing the deprecated Firebase Dynamic Links library and cleaning up residual components of the Firebase Invites library from the SDK. Concurrently, it updates various system configurations and documentation to acknowledge the new 'Firebase AI Logic' component, streamlining the codebase and ensuring accurate representation of supported features.

Highlights

• Removal of Deprecated Libraries: The Firebase Dynamic Links library has been completely removed from the SDK, including its build configurations, documentation, editor integration, and test app references. Additionally, lingering references to the deprecated Firebase Invites library have been cleaned up across various files.
• Integration of Firebase AI Logic: References to 'Firebase AI Logic' have been added to issue templates and the main README.md and docs/readme.md files, indicating its inclusion or preparation for integration within the SDK's supported features.
• Build System and Documentation Updates: The build system (CMake, Python scripts) and various documentation files (READMEs, issue templates) have been updated to reflect the removal of Dynamic Links and Invites, and the addition of Firebase AI Logic.

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[gemini-code-assist]

Code Review

This pull request effectively removes the deprecated Dynamic Links library and lingering references to the Invites library. The changes are comprehensive, touching build configurations, source code, documentation, and CI scripts. The addition of "Firebase AI Logic" to documentation and issue templates is also correctly implemented. The code removals are clean and I couldn't find any remaining artifacts of the deprecated libraries. The project cleanup, like updating test app settings, is a nice touch. Overall, this is a solid and well-executed change.