Remove 3.0 migration guide

Migrating from 2.x to 3.0 is no longer relevant: some of the advice wouldn't
work with 4.0. We don't really need a migration guide from 3.x any longer
since 2.x is no longer officially supported.

Signed-off-by: Gilles Peskine <[email protected]>
This commit is contained in:
Gilles Peskine
2025-10-10 15:48:06 +02:00
parent 5394731353
commit 9fc5910bdc
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