Fix https://go-review.git.corp.google.com/c/go/+/561456
For #61696
Change-Id: I573bd14cf0e5c41adcc8c2b9481e85c5792c2a82
GitHub-Last-Rev:
c6fce6d25f8c071c92926ec3341855ad2303b876
GitHub-Pull-Request: golang/go#65534
Reviewed-on: https://go-review.googlesource.com/c/go/+/561755
Reviewed-by: David Chase <drchase@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Jonathan Amsterdam <jba@google.com>
-TODO(laciferin@gmail.com)
+The [`(*sync.Map) Clear()`](//sync#Map.Clear) method deletes
+all the entries, resulting in an empty map
+([#61696](https://github.com/golang/go/issues/61696)).
+It is analogous to `clear`.
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