statsmanager: remove "legacy" wording This was a leftover from when we (or rather I) thought that the old (now called "high-level") API would be removed. We deemed it useful though, so let's remove that "legacy" language and make the description more friendly.

local xpcall = xpcall;

if select(2, xpcall(function (x) return x end, function () end,  "test")) ~= "test" then
	xpcall = require"util.compat".xpcall;
end

return {
	xpcall = xpcall;
};