MASKING Scene Contains Skydome mesh with Sky Material

So I am using a plane that doesn’t render in the main pass so I can export an EXR sequence with transparency without having to render separate passes however this text appears in the render behind the moving doors at they open.

“Your scene contains a skydome mesh with a sky material but it does not cover that part of the screen”

Is there some way to simply remove that text from being rendered entirely?