What I generally do is have the test console open in one monitor and the editor in another. I'll edit some code then hit Cmd-F8 to run the last test. This puts the focus on the test console, runs the test, and then the popup appears in the editor. That doesn't seem to be the behavior you describe.
I guess I don't like it because the popup draws my attention for no useful purpose. It obscures a small portion of the edit window so, psychologically, I always feel I have to click it away before I can get back to work.
Popup appears only if your tests console view isn't focused or console is hidden by other tool windows. Why do you want to remove it?
What I generally do is have the test console open in one monitor and the editor in another. I'll edit some code then hit Cmd-F8 to run the last test. This puts the focus on the test console, runs the test, and then the popup appears in the editor. That doesn't seem to be the behavior you describe.
I guess I don't like it because the popup draws my attention for no useful purpose. It obscures a small portion of the edit window so, psychologically, I always feel I have to click it away before I can get back to work.
It's not a big deal.
Correction: the editor window is indeed focused after Cmd-F8, like you said.