Remove red herring GPG workaround

Signed-off-by: Cole Miller <[email protected]>

.github/workflows/packages.yml

@@ -28,11 +28,9 @@ jobs:
           sudo apt-get update -qq
           sudo apt-get install -qq debhelper devscripts gnupg
 
-    - name: Work around GPG issue
-      run: |
-          mkdir -p ~/.gnupg
-          echo "pinentry-mode loopback" >~/.gnupg/gpg.conf
-
+      # Note for future maintainers: the secret key should be stored
+      # in the GHA secret in ASCII-armored form, and must not be
+      # password-protected.
     - name: Setup GPG signing key
       env:
           PPA_SECRET_KEY: ${{ secrets.PPA_SECRET_KEY }}