function removeItem(sEntityKey) {
			that.oModel._discardEntityChanges(sEntityKey, true);
			bCreatedPersistedRemoved = true;
		}
In side-effects scenarios, iterates all created persisted contexts of this list binding and
removes those entities (with its context, pending changes, messages, ...) which are not
included in the latest back-end response for an expanded list. If this list binding is
suspended, the affected entity keys are temporarily stored to remove those entities later
after the list binding has been resumed.

@returns {boolean}
  Whether created persisted contexts have been removed

@private