No reason to create the unstable dir, since aptly manages that

Change-Id: I8410575e3acdec36e62b0fc5dcd1a07849aabee9
diff --git a/cicd/pipelines/tasks/task_publish_unstable.jenkins b/cicd/pipelines/tasks/task_publish_unstable.jenkins
index c9aa832..faaad05 100644
--- a/cicd/pipelines/tasks/task_publish_unstable.jenkins
+++ b/cicd/pipelines/tasks/task_publish_unstable.jenkins
@@ -52,7 +52,6 @@
                     installGpgKeyring()
 
                     sh """
-                       mkdir -p /var/lib/aptly/publishes/unstable
                        aptly snapshot merge core-full-unstable-${stamp} ${debianMirrorSnapshotName} ${coreSnapshotName}
                        aptly publish snapshot --batch --passphrase-file=/var/lib/aptly/keyring/passphrase.txt --distribution=unstable --component=main core-full-unstable-${stamp} filesystem:public:unstable \
                            || aptly publish switch --batch --passphrase-file=/var/lib/aptly/keyring/passphrase.txt --component=main unstable filesystem:public:unstable core-full-unstable-${stamp}