There isn't. Once you have the basics needed to make a digital camera work, the incremental cost of additional features is very small, so there is a very strong incentive to cover at least the most common and popular features people expect — and a lot of competitive pressure. Even "retro" cameras like the Nikon Df have all the bells and whistles inside. (Well, and, outside, too: it has lots of buttons and dials and controls and a busy rear panel.)

Now, I've heard this kind of comment enough over the past decade or so that it's tempting to think that there might be market for such a camera. But so far, the companies with the actual market research haven't really dipped into the water. The only exception might be the Leica M10 (or other Leica digital models), but those operate in a slightly different marketing reality — they're luxury goods rather than consumer electronics or professional tools.

Your best bet really is to become comfortable with the camera you have, so you can easily access the things you want and ignore the others. All those multiple ways of doing things are there so you can find the one that works for you.