removeEntryChangeListner method
rempve a listener from change listners
Implementation
void removeEntryChangeListner(
Function(EntryChangeType changeType, T entry) lisnter) =>
_entryListners.remove(lisnter);
rempve a listener from change listners
void removeEntryChangeListner(
Function(EntryChangeType changeType, T entry) lisnter) =>
_entryListners.remove(lisnter);