Remove obsolete restriction in code

[samueltardieu]

changelog: none

[rustbot]

r? @llogiq

rustbot has assigned @llogiq.
They will have a look at your PR within the next two weeks and either review your PR or reassign to another reviewer.

Use r? to explicitly pick a reviewer

[llogiq]

Good to know this problem is now fixed.

[samueltardieu]

The CI is really flaky those days (I retried the job and it passed, it was a transient error unrelated to the code).