if JSD and JSW are on the same server, i.e. JSD is an application on your JIRA install, then go to the JSD project you wish to change --> project settings>Details and change the project type to Software.
This deletes the project and issues. If you might want it back one day you should backup before deleting. There is nothing in the article about changing the project type to say "Software" or "Business" if that is what you mean by normal JIRA project.
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