Revert "sweet: disable gvisor benchmark"

This reverts CL 389754. Following CL 390954, our gVisor build is
compatible with Go 1.19.

Fixes golang/go#51445.

Change-Id: Ideee154c48b24cd28af213833aeacdeb60fc4408
Reviewed-on: https://go-review.googlesource.com/c/benchmarks/+/390955
Trust: Michael Pratt <mpratt@google.com>
Run-TryBot: Michael Pratt <mpratt@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
2 files changed