Deprecate @ember/error

text/0889-deprecate-ember-error.md

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+---
+stage: accepted
+start-date: 2022-12-15
+release-date:
+release-versions:
+teams: # delete teams that aren't relevant
+  - framework
+  - typescript
+prs:
+  accepted: https://github.com/emberjs/rfcs/pull/889
+project-link:
+---
+
+# Deprecate @ember/error
+
+## Summary
+
+The @ember/error package is just a re-export of the native Error and is therefore unnecessary.
+
+## Motivation
+
+Removal of unnecessary code keeps the codebase cleaner and simplifies developer burden.
+
+## Transition Path
+
+There is no use case for this anymore. A simple codemod can convert current uses to the native Error class.
+
+## How We Teach This
+
+Remove @ember/error from docs.
+
+## Drawbacks
+
+You'll have to run a codemod to resolve existing usage. However, this is trivial and will actually simplify user code.
+
+## Alternatives
+
+None.
+
+## Unresolved questions
+
+None.