[neon/qt6/qt6-connectivity/Neon/release] debian/upstream: Revert "fake signing-key.asc"

[Carlos De Maine]

Git commit caabc96d14dc1434b20b913839a31f01efc59b5c by Carlos De Maine.
Committed on 09/01/2025 at 12:18.
Pushed by carlosdem into branch 'Neon/release'.

Revert "fake signing-key.asc"

This reverts commit 3b81078736bda435c4ff45eabd7e780ebb57ed6b

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

https://invent.kde.org/neon/qt6/qt6-connectivity/-/commit/caabc96d14dc1434b20b913839a31f01efc59b5c

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