Added by Marek Hulán almost 6 years ago.
Updated about 1 year ago.
We no longer need any Signo integration.
Is duplicate of
Added by Marek Hulán about 5 years ago
Fixes #3840 - Removes unused Signo related code
Applied in changeset 4fdfa622b6f4bc63018f76415499b54760f294e9.
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