Remove the "remove" button on "project sync failed"

The "Project sync failed" dialogue has "do nothing" and a "remove" button:

(I take this image from #64)

Think the "remove" button is dangerous here and doesn't help!

I use nexcloud with cospend app and sometimes my server is not online or has problems. I never ever want to remove the project.

Think this dialogue should just inform the user about problems, but should not have any actions.