- ooxml custom shapes width and height are in actual (logic) coordinates space
   and not in "virtual" 21600x21600 space

 - ooxml custom shapes width and height are in actual (logic) coordinates space
   and not in "virtual" 21600x21600 space

Don't declare dllexport classes that are purely inlined.
This will cause for the binary that links then to look for dll symbols,
which are naturlly not present.

The source files don't generate any code and just declare an inline class;
thus, the compiled object is empty and we don't need to link it in.

I deleted some unused headers. I also stopped exporting them for the same
reason.