components: default the user-defined empty ctor and dtor where possible I need an owner's approval please for changes under: components/cbor This is a mechanical change. There are a few instances (but not all) of empty user-defined constructors and destructors which can be defaulted in the /components code. This CL was uploaded by git cl split. R=dcheng@chromium.org Bug: 371316188 Change-Id: I28104d14388c6c6f7f956bce950448a5052c30a0 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5908592 Auto-Submit: Sorin Jianu <sorin@chromium.org> Reviewed-by: Daniel Cheng <dcheng@chromium.org> Commit-Queue: Daniel Cheng <dcheng@chromium.org> Cr-Commit-Position: refs/heads/main@{#1364025} NOKEYCHECK=True GitOrigin-RevId: ad029cb7bcb984bad570f0f22eababa464357431 
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