Remove GPG-signature from release script
Remove GPG-signature from release script

Allow release without signing with GPG.

Genymobile/gnirehtet,JonnyShuali/gnirehtet,JonnyShuali/gnirehtet,Genymobile/gnirehtet,WPO-Foundation/gnirehtet,WPO-Foundation/gnirehtet,WPO-Foundation/gnirehtet,WPO-Foundation/gnirehtet,Genymobile/gnirehtet