Don't trap the EXIT signal twice

killing the worker journal via EXIT signal prevents the cleanup()
function from executing!

NOTE: this is a problem in other scripts as well and needs to be
refactored there too!

test/cases/openshift_virtualization.sh

@@ -19,6 +19,9 @@ function cleanup() {
     $OC_CLI delete pvc "$PVC_NAME"
 
     sudo rm -rf "$TEMPDIR"
+
+    # Stop watching the worker journal when exiting.
+    sudo pkill -P "${WORKER_JOURNAL_PID}"
 }
 trap cleanup EXIT
 
@@ -96,8 +99,6 @@ sudo composer-cli blueprints depsolve bash
 WORKER_UNIT=$(sudo systemctl list-units | grep -o -E "osbuild.*worker.*\.service")
 sudo journalctl -af -n 1 -u "${WORKER_UNIT}" &
 WORKER_JOURNAL_PID=$!
-# Stop watching the worker journal when exiting.
-trap 'sudo pkill -P ${WORKER_JOURNAL_PID}' EXIT
 
 # Start the compose and upload to OpenShift
 greenprint "🚀 Starting compose"
@@ -126,7 +127,6 @@ get_compose_metadata "$COMPOSE_ID"
 
 # Kill the journal monitor immediately and remove the trap
 sudo pkill -P ${WORKER_JOURNAL_PID}
-trap - EXIT
 
 # Did the compose finish with success?
 if [[ $COMPOSE_STATUS != FINISHED ]]; then