Remove deprecated features in master branch

[ruflin]

The next release of the master branch will be the 6.0 release. Features which were deprecated for 5.0 should be removed in the master branch to clean it up. This issue is intended to track the removal of these items.

• Remove old filebeat configuration options Remove deprecated config options force_close_files and close_older #3768
• Remove filebeat state conversion script for migration from 1.x to 5.x Remove convert old states code #3767
• Remove geoip feature Remove deprecated geoip feature #3766
• Remove topology map feature Remove deprecated topology map #3769
• Remove http endpoing in Winlogbeat Remove metrics endpoint in winlogbeat #3901

[ruflin]

Closing as all PR's were merged.