As discussed with @mitchellh and @phinze we don’t need to randomize in
order to get infinite ID’s. When we hit the highest possible number and
add `1` it will just wrap back to `0`, which is just fine with regards
to how Terraform works and uses these ID’s.
Tested this by setting the initial value of `m.nextId` to `4294967293`
where the maximum is `4294967295 `. So with some additional logging it
clearly showed it wrapped and continued without any issues.
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