hdf5_ep

[svn-r11935] Purpose:
Cleanup

Description:
v1.7:
Removed some debug files left by previous change.
Uncommented the removal of the temporary working directory.

v1.6:
Moved the code of removal of the temporary working directory
to a later location in order to stay in sync with v1.7.
(The later location is needed for v1.7 code but makes no different
to v1.6)

Platforms tested:
Tested by hand.