Remove default actors spawned at start of game

Everyone is acting like this is the weirdest question, so I assume it’s some sort of newbie misunderstanding because I have this problem too. No matter how empty I make my level, a whole bunch of default things spawn when I press play.

Instead of asking, “How do I…” can I ask how do YOU guys normally set your camera as default when you set up a new project?

It doesn’t let me set “Game Mode” to None, by the way, and I have created an empty level.

[edit]
After much searching I’ve found that there’s no such thing as setting it with a single checkbox like in Unity, you have to write a script.