Revert "Fixes for beta package"

This reverts commit e0a0dc5f6bb668e17e972ccbf9daad6d4356cc0e.
Revert "Beta package which gets its data from beta.openwrt.piratebox.de"

This reverts commit aba2d1db515fd49a9110ef20fcd7256c05fc3cbe.
Better implementation of piratebox beta sources (config option)