cockpituous: Drop release-dsc
cockpituous: Drop release-dsc

The built dsc doesn't go anywhere, so that just happens in vain. It's
also the only thing that requires a GPG key, so let's just drop that.

Closes #14748
martinpitt/cockpit,cockpit-project/cockpit,deryni/cockpit,garrett/cockpit,deryni/cockpit,mvollmer/cockpit,deryni/cockpit,garrett/cockpit,martinpitt/cockpit,cockpit-project/cockpit,deryni/cockpit,martinpitt/cockpit,deryni/cockpit,martinpitt/cockpit,mvollmer/cockpit,mvollmer/cockpit,mvollmer/cockpit,garrett/cockpit,martinpitt/cockpit,cockpit-project/cockpit,cockpit-project/cockpit,deryni/cockpit,deryni/cockpit,garrett/cockpit,mvollmer/cockpit,cockpit-project/cockpit,garrett/cockpit