Revert^2 "[RONs] New promotability characteristics are now part of android.app.ui_rich_onging"

Previously these were part of android.app.opt_in_rich_onging. That will be the flag used to make the builder and extra APIs public. But for now we want these behaviors in the 25Q3 release.

Flag: android.app.ui_rich_ongoing
Fixes: 415070395
Test: presubmit

Reverted changes: /q/submissionid:33519730-revert-33345963-opt_in_rons-MJKCDFEYCP

Change-Id: I63f80e3073682b6e256166e061759875e80b7770