#009320: findNode(): copy-paste code

As seen on http://pubsvn.ez.no/doxygen/ezcontentobjecttreenode_8php-source.html

In findNode(), on line 5413, both cases where $remoteID is present and is not use exactly the same code.

Not applicable
I didn't verify if 3.6.11 was affected, too.

On my 3.7.5 install:

vi kernel/classes/ezcontentobjecttreenode.php
:4853