remove one liner choco install for windows
Outdated magic install oneliners for choco tend to get out of date, thats why we concluded to remove the global choco installation instruction from the cli in exercism/exercism#3231 and simply link the choco installation instruction instead.
Also I want to make clear, that choco often causes trouble when run from cmd instead of powershell unless "prefixed" by @powershell.
Therefore I suggest to omit that current oneliner and instead tell the student to "install choco as described on their webpage (link) unless done already for the CLI" or something similar.
I do suggest explicitely mentioning the CLI, since it will probably be the first contact to exercisms tool chain and thats why I assume choco a given fact on windows for anyone who wants to do exercism.