Do not declare GPG settings again in release flow

For second JDK. This makes the tear-down steps remove
the GPG key twice and fail.

Author: acogoluegnes

.github/workflows/release.yml

@@ -48,11 +48,6 @@ jobs:
           distribution: 'temurin'
           java-version: '11'
           cache: 'maven'
-          server-id: ${{ env.maven_server_id }}
-          server-username: MAVEN_USERNAME
-          server-password: MAVEN_PASSWORD
-          gpg-private-key: ${{ secrets.MAVEN_GPG_PRIVATE_KEY }}
-          gpg-passphrase: MAVEN_GPG_PASSPHRASE
       - name: Package Stream Perf Test
         run: ci/package-stream-perf-test.sh
         env: