chore(Algebra/Ring/CharZero): remove scoped in simp attributes

[Paul-Lez]

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[github-actions]

PR summary d9cff27ba7

Import changes for modified files

No significant changes to the import graph

Import changes for all files

Files	Import difference

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Declarations diff

No declarations were harmed in the making of this PR! 🐙

You can run this locally as follows

## from your `mathlib4` directory:
git clone https://github.com/leanprover-community/mathlib-ci.git ../mathlib-ci

## summary with just the declaration names:
../mathlib-ci/scripts/pr_summary/declarations_diff.sh <optional_commit>

## more verbose report:
../mathlib-ci/scripts/pr_summary/declarations_diff.sh long <optional_commit>

The doc-module for scripts/pr_summary/declarations_diff.sh in the mathlib-ci repository contains some details about this script.

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No changes to strong technical debt.

No changes to weak technical debt.

[YaelDillies]

Can you find which PR introduced these tags?

[Paul-Lez]

Can you find which PR introduced these tags?

I believe this PR: #15631.

[YaelDillies]

Maybe undo your change and turn this PR into an addition of a comment explaining the scoping

[Paul-Lez]

Sounds good, will update this in a bit:)