Delete license in twig extension

This file is outdated and does not seem useful as there is already a license in the root which covers also this.
minor #1534 Delete license in twig extension (Tobion)

This PR was merged into the 1.16-dev branch.

Discussion
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Delete license in twig extension

This file is outdated and does not seem useful as there is already a license in the root which covers also this.

Commits
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c8cd7f2 Delete license in twig extension