[TYPO3-templavoila] Remove double linked objects

[Jonas Dübi]

Hello everyone

After the import of a big page tree, with multilingual content elements 
and langChild I recognized that all translated elements are linked 
twice, once as langChild to the default language element and once 
directly into the page.

Is there any function to unlink all the double linked elements.

I tried to writhe a function my own, but I stuck with the parentPointer 
because, it changes after every unlink so I would have to regenerate the 
dataTree every time I unlink another object from the tree...

Regards,
Jonas