avahi: remove AvahiServiceBrowser from sys
avahi: remove AvahiServiceBrowser from sys

Only last created service browser was stored.
avahi_client_free() should free also all service browsers.

xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc