This reverts commit 2604db6e404cc1719ae779961ca12ed27fd06e89.
The API to get the closest server can be down occasionally, so instead
just revert to its previous behavior.
When custom server is used, it would still use the "common" RTMP service
to cap its bitrate. So if Twitch was selected and you changed over to
custom RTMP server, it would still cap to Twitch's bitrate limits even
though you're not using Twitch anymore.
Changes the default autoconfig test bitrate to 10000kb/s, which will
then be capped by the user's service selection (so it'll still only use
6000 on Twitch for example, but will allow 10000 on Youtube and others).
The auto-configuration wizard is designed to allow first-time or
novice/uneducated users or to set up video and encoding settings in a
very quick and easy way. It'll automatically perform a bandwidth test,
and/or test the user's video settings to determine the most ideal
settings for streaming and recording (assuming a 1-pc setup).
