remove unnecessary code block directive
minor #3676 remove unnecessary code block directive (xabbuh)

This PR was merged into the master branch.

Discussion
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remove unnecessary code block directive

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | 2.5+
| Fixed tickets |

Commits
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37278d8 remove unnecessary code block directive