Check_MK Werk 2502: Fixed removing autochecks when a host is configured to be ping only

ID: 2502 Title: Fixed removing autochecks when a host is configured to be ping only Component: Core & Setup Level: 1 Class: Bug Fix Version: 1.2.7i3 When a host had already discovered services assigned and was configured to be monitored as ping only host, by e.g. setting "no agent" in the host properties, the former discovered services were not removed.