Problem/Motivation
In #2966327: Limit what can be called by a callback in render arrays to reduce the risk of RCE, deprecation notices were added when untrusted callbacks were used in render arrays.
Do we still need the deprecation path?
Proposed resolution
Potentially remove the ability to trigger deprecations.
Remaining tasks
Discuss whether we want to do this at all.
User interface changes
None.
API changes
tbd
Data model changes
None.
Release notes snippet
TBD.