My answer is not officially proofed, but it works in many cases.
InDesign is a plugin-manager. Any function is enabled with a plugin. Some, but not all plugins are necessary to run InDesign. The others can be removed. InDesign will run without problems but with less fuctionlity.
You will find those plugins close or inside the apllication folder. On the Mac you can go to the application icon and select it with the right mouse click. Choose the context menu "show content".
There you can search and remove plugins. I would not remove, I would only rename or zip unwanted plugins, in case if InDesign malfunction or does not work at all withot this plugin, so you are able to reactivate them easy,
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