Tests: terminate DBus trafic with the connection before removing its account
Tests: terminate DBus trafic with the connection before removing its account

Otherwise unit tests gets racy.

GNOME/folks,pwithnall/folks,renatofilho/folks,renatofilho/folks,GNOME/folks,renatofilho/folks,renatofilho/folks2,renatofilho/folks2,renatofilho/folks2,GNOME/folks,pwithnall/folks,pwithnall/folks,renatofilho/folks,renatofilho/folks2