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

[Carlos De Maine]

Git commit 674c7990e468238f03299d3eeada971935ba9d1a by Carlos De Maine.
Committed on 09/01/2025 at 12:28.
Pushed by carlosdem into branch 'Neon/release'.

Revert "fake signing-key.asc"

This reverts commit 4356cf7a755422d9e4da7396377b12566d463a37

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

https://invent.kde.org/neon/qt6/qt6-lottie/-/commit/674c7990e468238f03299d3eeada971935ba9d1a

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