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

[Carlos De Maine]

Git commit 0980aa1cd68eb119d754894ca9d173d0b5298525 by Carlos De Maine.
Committed on 09/01/2025 at 12:37.
Pushed by carlosdem into branch 'Neon/release'.

Revert "fake signing key"

This reverts commit 325e6b0e338c6733b57752a9f93fdfcaa5cf57fa

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

https://invent.kde.org/neon/qt6/qt6-tools/-/commit/0980aa1cd68eb119d754894ca9d173d0b5298525

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