cirrus_vga: CIRRUS_HOOK_* is not used anymore

Signed-off-by: NJuan Quintela <quintela@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

hw/cirrus_vga.c

@@ -208,11 +208,6 @@
 
 #define CIRRUS_PNPMMIO_SIZE         0x1000
 
-
-/* I/O and memory hook */
-#define CIRRUS_HOOK_NOT_HANDLED 0
-#define CIRRUS_HOOK_HANDLED 1
-
 #define ABS(a) ((signed)(a) > 0 ? a : -a)
 
 #define BLTUNSAFE(s) \