[dev.typeparams] go/types: remove a stale comment (cleanup)
[dev.typeparams] go/types: remove a stale comment (cleanup)

Remove a stale comment from when the new types.Info API was guarded
behind the typeparams build constraint.

Change-Id: I319ad0a9e4e4958efdb96c967bf13a0119b5647b
Reviewed-on: https://go-review.googlesource.com/c/go/+/340010
Trust: Robert Findley <9179eee875d1ee628c37fb47d7e749e855ffd21f@google.com>
Run-TryBot: Robert Findley <9179eee875d1ee628c37fb47d7e749e855ffd21f@google.com>
TryBot-Result: Go Bot <66cb808b70d30c07676d5e946fee83fd561249e5@golang.org>
Reviewed-by: Robert Griesemer <a6752097faebf1f02d80107d77a9be009089afe3@golang.org>

cloudflare/go,nawawi/go,cloudflare/go,cloudflare/go,golang/go,golang/go,golang/go,cloudflare/go,CAFxX/go,CAFxX/go,nawawi/go,golang/go,golang/go,nawawi/go,cloudflare/go,nawawi/go,CAFxX/go,CAFxX/go,CAFxX/go,CAFxX/go,cloudflare/go,CAFxX/go,cloudflare/go,nawawi/go,golang/go,CAFxX/go,nawawi/go,cloudflare/go,nawawi/go,nawawi/go,golang/go,golang/go