Removing `newArchEnabled` property might cause issues with old libraries

Description

When newArchEnabled property is set in gradle.properties, a warning is displayed:

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WARNING: Setting `newArchEnabled=false` in your `gradle.properties` file is not
supported anymore since React Native 0.82.

You can remove the line from your `gradle.properties` file.

The application will run with the New Architecture enabled by default.

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As long as your dependencies do not rely on this property to enable new arch, you are good to remove it. Libraries created with builder bob < v0.48.4, check for the property, so disabling it might cause issues with migration.

I propose to remove the line "You can remove the line from your gradle.properties file." or change it to mention old libraries.

Steps to reproduce

not relevant

React Native Version

0.82.0

Affected Platforms

Runtime - Android

Areas

Other (please specify)

Output of npx @react-native-community/cli info

not relevant

Stacktrace or Logs

not relevant

MANDATORY Reproducer

not relevant

Screenshots and Videos

No response

The issue names gradle.properties and includes the warning text, but no React Native source file or test. Search the repository for the exact warning, inspect the Android configuration path that emits it, and compare the linked builder-bob template. Update the guidance for older libraries, then run the relevant Android configuration or warning test; done means the message no longer implies unconditional safety.