Get rid of the soap and shower/hair wash too. People can bring their own if they want to wash their hands or shower surely?
I can't remember the last time I stayed somewhere that had those tiny bars of wrapped soap (I still have a stock of them at home!). All hotels now seem to have dispensers. Much less waste. But if the dispenser in your room is empty or broken, getting it fixed can be problematic.
Also supplies of paper and pens seem to be a thing of the past. Novotel used to supply propelling pencils. My penny-pinching company issued an instruction that we should take the pens for company use!
Likewise phones in hotel rooms. The extortionate rates that you got charged for using them used to be a big money-maker for the hotels. Now superceded by mobile phones. I suspect that charging for wifi is going to go the same way. Who is going to pay for wifi when you have it for free on your mobile?
An Ibis that I stay in did try log-in and room access by app, and were plugging it quite heavily, but seem to have given up on it, probably as it was too unreliable. But Ibis in general now seem to want people to use their app for the members' complimentary drinks, but most hotels have a stock of paper vouchers if you ask. There is a trend with most hotel groups of trying to get you to use their app.