Coffee Break: Join us on Wednesday, April 5th at 10am PT to chat with Ben Gaines, Director of Product Management for Adobe Analytics. Ben will be online to answer your Analytics and Adobe Summit questions.
You can do that through the Admin Interface. Go to Admin > Report Suites. Then select the report suite(s) where you want to hide those events. Then go to General > Edit Settings > Customize Menu. Screenshot below shows you the rest from there.