ci: don't JAR javadoc (#3493)
ci: don't JAR javadoc (#3493)

Creating javadoc is sufficient to make sure the docs are free of errors.
JARing it just wastes time.
vam-google/google-cloud-java,vam-google/google-cloud-java,vam-google/google-cloud-java,vam-google/google-cloud-java,vam-google/google-cloud-java,vam-google/google-cloud-java