remove obsolete afm-user-daemon

Not sure if this is the proper location, and most likely isn't, but what is the rationale for removing it? I noticed that this also provided .service files and org.AGL.user required for dbus interaction. Without it any. dbus RPC start/stop using afm user proxy interface will result in "The name org.AGL.afm.user was not provided by any .service files". 

ws interface also seemed to bumped to version 4 (but in afm-user-daemon is only aware of version 3) so even if someone enables the LEGACY DAEMON cmake the compilation will fail. 

So, apologies if these seems obvious, but what are current alternatives for using DBUS RPC calls in a programmatic (like afm_user_daemon_proxy interface does) fashion.

Close for HH RC3