You would need to rewrite most of the "view issue" code in Jira to do this, and it will be removing useful information from the user's view, as well as rendering you unsupported and making upgrades harder.
I would invest in training them better, not hacking a tool.
...be more productive while being fun to use at the same time. For some, getting started can be a bit intimidating. This is especially true if Jira Service Desk is your first exposure to Atlassian...
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