[neon/qt6/qbs/Neon/release] debian/upstream: Revert "temporary fake signing-key"

[Carlos De Maine]

Git commit 27b0a5ae0ee22618aedcc7a6f13aee0cf71dd914 by Carlos De Maine.
Committed on 09/01/2025 at 12:10.
Pushed by carlosdem into branch 'Neon/release'.

Revert "temporary fake signing-key"

This reverts commit 09f4877988b9e135d2dfbe3ca77e749fc44a4273

D  +0    -0    debian/upstream/signing-key.asc

https://invent.kde.org/neon/qt6/qbs/-/commit/27b0a5ae0ee22618aedcc7a6f13aee0cf71dd914

diff --git a/debian/upstream/signing-key.asc b/debian/upstream/signing-key.asc
deleted file mode 100644
index e69de29..0000000