In what area(s)?

/area runtime

/area operator

/area placement

/area docs

/area test-and-release

/area injector

/area scheduler

/area sentry

Describe the feature

Scheduler backed reminders should be removed from Preview status since they are the default in 1.16 and the placement API for this will be removed in 1.17+:https://docs.dapr.io/operations/support/support-preview-features/

Release Note

RELEASE NOTE: