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

[Carlos De Maine]

Git commit aef4534e34a7b4a98108ec022db5c6b5df845ac9 by Carlos De Maine.
Committed on 09/01/2025 at 12:36.
Pushed by carlosdem into branch 'Neon/release'.

Revert "fake signing-key.asc"

This reverts commit c1a98ad5eb0bafed4a8bc0d7bfa8dd06c35d20bd

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

https://invent.kde.org/neon/qt6/qt6-speech/-/commit/aef4534e34a7b4a98108ec022db5c6b5df845ac9

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