Trouble with unittests testDmlTextshape and testDmlTextshapeB

[Regina Henschel]

Hi all,

I'm currently working on improving the import of group shapes in docx, 
see https://gerrit.libreoffice.org/c/core/+/115668
In that the unittests testDmlTextshape and testDmlTextshapeB in 
sw/qa/extras/ooxmlexport/ooxmlexport6.cxx fail. But I think, the problem 
is not my patch but an export bug, see 
https://bugs.documentfoundation.org/show_bug.cgi?id=142318

The unittests assume a position, which does not correspond to the actual 
position is the saved file.

With my patch applied, in 'normal' cases the position is nearly correct. 
But here LibreOffice writes the position with a large negative y-value 
in the groups chOff element. In Word this results in an overlap of group 
members with the following text. Such rendering would require a negative 
bottom margin in LibreOffice and that is currently not implemented, see 
https://bugs.documentfoundation.org/show_bug.cgi?id=141880

May I remove the positioning parts from these unittests?

Kind regards
Regina