hdf5

[svn-r14838] Purpose: Remove ohdr_gentst from Windows projects

Description:
The ohdr_gentst project exists in order to re-create test input files that are distributed with the source.  These projects aren't built by default on most platforms, and the source isn't distributed in release builds.  To avoid confusion and bloat, we remove the Windows version of this project.

Tested:
None, only removed