Disappearance of "Remote mismatch" releated diagnosis no reprted when "No Peer detected" diagnosis detected.

Acoording to PNIO Diagnosis Guidline, the device shall indicate the disappearance off all "Remote mismatch" releated diagnosis when "No Peer detected" is reported. This is currently not done.

If a specific ExtChannelErrorType (e.g. ExtChannelErrorType y) is below another ExtChannelErrorType (in this sample ExtChannelErrorType x), a coming diagnosis with ExtChannelErrorType x will purge the underlying ExtChannelErrorType. This is not done automatically; the application has therefore to add ExtChanneleErrorType x first, and then to remove ExtChannelErrorType y.