Remove VIR_DOMAIN_SHUTDOWN_CRASHED from public API

The VIR_DOMAIN_SHUTDOWN_CRASHED state constant does not appear
to be used in the QEMU code anyway. It also doesn't make much
(any) sense, since the 'shutdown' state is a transient state
between 'running' and 'shutoff' and when a guest crashes, it
does not end up in a 'shutdown' state, only 'shutoff'.

It was added in commit 14e7e0ae8d
which post-dates v1.1.0, so is safe to remove before 1.1.1

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>

tools/virsh-domain-monitor.c

@@ -240,8 +240,6 @@ vshDomainStateReasonToString(int state, int reason)
         switch ((virDomainShutdownReason) reason) {
         case VIR_DOMAIN_SHUTDOWN_USER:
             return N_("user");
-        case VIR_DOMAIN_SHUTDOWN_CRASHED:
-            return N_("crashed");
         case VIR_DOMAIN_SHUTDOWN_UNKNOWN:
         case VIR_DOMAIN_SHUTDOWN_LAST:
             ;