chore: cleanup of adaptation notes

[kim-em]

---

[github-actions]

PR summary 9036ce5439

Import changes for modified files

No significant changes to the import graph

Import changes for all files

Files	Import difference

---

Declarations diff

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

You can run this locally as follows

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

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

The doc-module for scripts/pr_summary/declarations_diff.sh contains some details about this script.

---

Decrease in tech debt: (relative, absolute) = (6.02, 1.29)

Current number	Change	Type
133	-35	adaptation notes
5	-5	maxHeartBeats modifications
147	-4	simp +instances

Current commit cb009dbf7e
Reference commit 9036ce5439

You can run this locally as

./scripts/reporting/technical-debt-metrics.sh pr_summary

• The relative value is the weighted sum of the differences with weight given by the inverse of the current value of the statistic.
• The absolute value is the relative value divided by the total sum of the inverses of the current values (i.e. the weighted average of the differences).

[grunweg]

Thanks for doing this! Just two small questions.
bors d+

[grunweg]

Can you say a word about this change?

[kim-em]

I'll revert this one for now.

[mathlib-bors]

✌️ kim-em can now approve this pull request. To approve and merge a pull request, simply reply with bors r+. More detailed instructions are available here.

[JovanGerb]

You can just move the noncomputable section a bit upwards to fix this.

[mathlib-merge-conflicts]

This pull request has conflicts, please merge master and resolve them.