[svn-r9979] Purpose:

Bug fixed.

Description:
Heping used to have a network limit that if too many rsh connections
occurred in a second, it stopped accepting connections for 30 seconds.
That caused testph5diff to fail when too many mpi jobs are executed
repidly.  A sleep 2 was in to go around this problem.  Heping's limit
has been raised, thus no more need for this hack.  Sleep 2 is removed.

Platforms tested:
Tested in heping (pp).

Misc. update:

tools/h5diff/testh5diff.sh

@@ -83,7 +83,6 @@ TOOLTEST() {
 #echo $pmode
     if test -n "$pmode"; then
 	RUNCMD=$RUNPARALLEL
-	sleep 2
     else
 	RUNCMD=$RUNSERIAL
     fi