cts: Delete shm blacbox after corosync kill

This makes SHM Audit pass in test CpgCfgChgOnExecCrash.

Signed-off-by: Jan Friesse <jfriesse@redhat.com>
Reviewed-by: Fabio M. Di Nitto <fdinitto@redhat.com>
(cherry picked from commit b9eb19e623d2b69c86cf78f1fa50a004c804ac20)

cts/corotests.py

@@ -301,6 +301,7 @@ class CpgCfgChgOnExecCrash(CpgConfigChangeBase):
         self.CM.log("sending KILL to corosync on " + self.wobbly)
         self.CM.rsh(self.wobbly, "killall -9 corosync")
         self.CM.rsh(self.wobbly, "rm -f /var/run/corosync.pid")
+        self.CM.rsh(self.wobbly, "rm -f /dev/shm/qb-corosync-blackbox*")
         self.CM.ShouldBeStatus[self.wobbly] = "down"
 
     def __call__(self, node):