resource-agents: Clear vm.sh default
resource-agents: Clear vm.sh default

The default behavior of vm.sh is to use_virsh whenever
possible.  The problem with specifying a default in the
RA metadata is that it causes rgmanager to provide a
value to the RA when it is called.  In this case, rgmanager
was providing "1" as the default, meaning that the logic
which carefully determines whether to use 'xm' or 'virsh'
is disabled.

This is not seen when testing the resource agent by
hand; it is only seen when called in the context of
rgmanager or rg_test.

Signed-off-by: Lon Hohberger <ff1811917d4a4d5f8c801f25e2c8fea5684c1092@redhat.com>

asp24/resource-agents,stevenraspudic/resource-agents,stevenraspudic/resource-agents,asp24/resource-agents,asp24/resource-agents,stevenraspudic/resource-agents