[Routing] Remove outdated tip about sticky locale
bug #3648 [Routing] Remove outdated tip about sticky locale (bicpi)

This PR was merged into the 2.3 branch.

Discussion
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[Routing] Remove outdated tip about sticky locale

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | all
| Fixed tickets | -

Commits
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2858786 [Routing] Remove outdated tip about sticky locale