tests/bug-830665: use the default H0

The use of 'hostname -s' leads to a failure on my VM due to
attempting to create the volume on localhost. Use the default H0
value.

BUG: 830665
Change-Id: Icf23c89d2387fe747aca6d99af12f7d4e1e3fbf0
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-on: http://review.gluster.org/4266
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>

tests/bugs/bug-830665.t

@@ -1,7 +1,8 @@
 #!/bin/bash
 
 . $(dirname $0)/../include.rc
-H0=$(hostname -s)
+
+cleanup;
 
 function recreate {
 	rm -rf $1 && mkdir -p $1