Related intentional change in the 2017-01-09 steam beta client noted at https://steamcommunity.com/groups/SteamClientBeta#announcements/detail/586991182177118126.
Hello @joaormatos, looks like this was re-enabled some time ago.
Nothing extracted yet.
On Linux the gamepad bindings work fine in the desktop configuration, so please don't hide those settings from us just because they don't work on Windows!