remove unsued modifier argument.


git-svn-id: https://svn.blender.org/svnroot/bf-extensions/trunk/py/scripts/addons@4764 96b784f8-4ae3-dd11-aff7-0030488c597c
Enhanced FBX export.
* Export polygons instead of tessellated tris/quads.
* Export split vertex normals.
* Better performances (about 20% gain at least with big files), and use much less bytes when exporting UVs/VCol!

git-svn-id: https://svn.blender.org/svnroot/bf-extensions/trunk/py/scripts/addons@4765 96b784f8-4ae3-dd11-aff7-0030488c597c