It's because you have the administration rights on the project/s displayed in the board. So in order to remove the button you need to remove your project administration rights. Supposing you have system admin rights then you can remove your project level rights and grant these to you only when you need to change something.
Hope it helps.
Hey admins! I’m Dave, Principal Product Manager here at Atlassian working on our cloud platform and security products. Cloud security is a moving target. As you adopt more products, employees consta...
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