ampfixer
LANDR isn't hard coded into Sonar. It's just an export option, so deleting Landrexport.exe should remove it and the new update should eliminate the export option from the menu. Makes sense to me.

The initial release did actually install the LandR program on my system. The early release Sonar 2016 03 does not uninstall it, nor remove the utility menu export option. It was easily uninstalled under control panel/programs though, then by deleting the LandR utility menu registry entry in regedit located here:
 
HKEY_LOCAL_MACHINE\SOFTWARE\Cakewalk Music Software\Tools Menu 
 
Weird how it hasn't shown up in some people's program list - I guess it just didn't install? Verbose install?