Why is Cookie::createFromRawSetCookieHeader unused?

[mhsdesign]

What about the Cookie::createFromRawSetCookieHeader(...) method?
[...] Should we deprecate and remove it or try to make actual use of it (could be in a follow-up)?

This should be a minimal invasive change in order to be applied to all supported branches without too much risk.
If Cookie::createFromRawSetCookieHeader() is not used I'd be happy about a follow up that deprecates/removes it for master

copied from #2138 (comment)

[mhsdesign]

christian wrote:

I would mid term want to get rid of the whole Cookie object or remodel it maybe? IDK, sure a DTO to make getCookieParams/withCookieParams a bit nicer to use would be great, but right now the cookie object stems from our own http implementation way back. So anything we can cut from it is a win IMHO 😂