fence: remove unrequired headers from rackswitch
fence: remove unrequired headers from rackswitch

also fix a fauilure to build with 2.6.27 kernel headers

Signed-off-by: Fabio M. Di Nitto <510df3d038b805d3c95a0d349043a42f16d04605@redhat.com>

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