types2 handles all constant-related bounds checks in user Go code now,
so it's safe to remove the check from typecheck, avoid the inconsistency
with type parameter.
Fixes#65417
Change-Id: I82dd197b78e271725d132b5a20450ae3e90f9abc
Reviewed-on: https://go-review.googlesource.com/c/go/+/560575
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Robert Griesemer <gri@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
