dashboard: re-enable x/website on freebsd-riscv64-unmatched

This build should be passing on x/website as of CL 456517.

Updates golang/go#51800.
Updates golang/go#57217.

Change-Id: Iff8b8e6600bf15625e994d6ae398eda170c991dc
Reviewed-on: https://go-review.googlesource.com/c/build/+/457555
TryBot-Result: Gopher Robot <[email protected]>
Auto-Submit: Bryan Mills <[email protected]>
Reviewed-by: Than McIntosh <[email protected]>
Run-TryBot: Bryan Mills <[email protected]>

Author: Bryan C. Mills

dashboard/builders.go

@@ -2889,17 +2889,6 @@ func init() {
 			if repo == "perf" {
 				return false
 			}
-			if repo == "website" {
-				// x/website is stuck on an old x/sys because it's stuck on an old Go
-				// runtime because it's stuck on AppEngine (#51800).
-				// The old x/sys doesn't support freebsd/riscv64 (#57217).
-				// The new one doesn't support Go 1.16.
-				// So we have to skip x/website until that whole mess is resolved.
-				//
-				// TODO(#51800, #57217): update the x/sys dependency in x/website and
-				// re-enable this repo.
-				return false
-			}
 			return onlyMasterDefault(repo, branch, goBranch)
 		},
 	})