Remove `protocol.name`

[michielbdejong]

It occured to me that except for the singleProtocolLegacy in https://cs3org.github.io/OCM-API/docs.html?branch=v1.1.0&repo=OCM-API&user=cs3org#/paths/~1shares/post we don't really need the "name": "webdav" or "name": "multi", right? Can we remove it in singleProtocolNew and multipleProtocols?

[glpatcern]

I definitely remember a lot of resistance on that, because removing name essentially is a breaking change w.r.t. OCM 1.0.

[glpatcern]

Following my comment in #127, I think we can deprecate protocol.name in the prospect 1.2, and remove it with OCM 2.0.