repeated Speaker's Summary

[jmdyck]

In meetings/2023-03/mar-22.md, for the item "Type Annotations Delimiting Concerns", the "Speaker's Summary of Key Points" is the same as that for the previous item "Type Annotations Proposal Update".

(The 'Conclusion' is also the same, though that's perhaps appropriate.)

[aaronliu0130]

@waldemarhorwat was the presenter for https://github.com/tc39/notes/blob/main/meetings/2023-03/mar-22.md#type-annotations-delimiting-concerns