hdf5_chunking_query_bmr

[svn-r13964] Purpose:
Bug fix.

Description:
It used to clean out all *.h5 when done but this could cause a racing
condition error if parallel make (e.g., gmake -j ...) is used because
the "rm ... *.h5 ..." would remove *.h5 generaged and are still used
by other test programs (e.g. xx_write/xx_read).

Solution:
Removed "*.h5" from the cleanup list since the test program has already
taken care of removing temporary *.h5 generated.

Tested platform:
smirom.  Not triple platforms tested since this is just a simple shell
script change.