fix!: remove deprecated API from auth & crashlytics

[russellwheatley]

Description

• firestore settings host is marked as deprecated but all the documentation on web, android & iOS have it as being not deprecated. I suggest we remove the console.warning() for it.

Related issues

Release Summary

Checklist

• I read the Contributor Guide and followed the process outlined there for submitting PRs.
  • Yes
• My change supports the following platforms;
  • Android
  • iOS
  • Other (macOS, web)
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• This is a breaking change;
  • Yes
  • No

Test Plan

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Name	Status	Preview	Comments	Updated (UTC)
react-native-firebase	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Aug 4, 2025 9:26am

[mikehardy]

These seem good - agreed if no deprecation mark upstream on firestore host, we shouldn't have it deprecated here since we are downstream / derivative

approving all the changes so far and pre-approving removing the host deprecation code