authz: delete existing ACL implementation

The 'qemu_acl' type was a previous non-QOM based attempt to provide an
authorization facility in QEMU. Because it is non-QOM based it cannot be
created via the command line and requires special monitor commands to
manipulate it.

The new QAuthZ subclasses provide a superset of the functionality in
qemu_acl, so the latter can now be deleted. The HMP 'acl_*' monitor
commands are converted to use the new QAuthZSimple data type instead
in order to provide temporary backwards compatibility.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
diff --git a/ui/vnc-auth-sasl.h b/ui/vnc-auth-sasl.h
index 2ae224e..fb55fe0 100644
--- a/ui/vnc-auth-sasl.h
+++ b/ui/vnc-auth-sasl.h
@@ -30,8 +30,8 @@
 typedef struct VncStateSASL VncStateSASL;
 typedef struct VncDisplaySASL VncDisplaySASL;
 
-#include "qemu/acl.h"
 #include "qemu/main-loop.h"
+#include "authz/base.h"
 
 struct VncStateSASL {
     sasl_conn_t *conn;
@@ -60,7 +60,8 @@
 };
 
 struct VncDisplaySASL {
-    qemu_acl *acl;
+    QAuthZ *authz;
+    char *authzid;
 };
 
 void vnc_sasl_client_cleanup(VncState *vs);