hw/timer/hpet: Remove unused functions hpet_ram_readb, hpet_ram_readw

Fix compiler error about defined but not used functions when compiling
with -DHPET_DEBUG by deleting the unused debug functions hpet_ram_readb
and hpet_ram_readw.

Signed-off-by: Dov Murik <dovmurik@linux.vnet.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200909083650.46771-2-dovmurik@linux.vnet.ibm.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

hw/timer/hpet.c

@@ -419,20 +419,6 @@ static void hpet_del_timer(HPETTimer *t)
     update_irq(t, 0);
 }
 
-#ifdef HPET_DEBUG
-static uint32_t hpet_ram_readb(void *opaque, hwaddr addr)
-{
-    printf("qemu: hpet_read b at %" PRIx64 "\n", addr);
-    return 0;
-}
-
-static uint32_t hpet_ram_readw(void *opaque, hwaddr addr)
-{
-    printf("qemu: hpet_read w at %" PRIx64 "\n", addr);
-    return 0;
-}
-#endif
-
 static uint64_t hpet_ram_read(void *opaque, hwaddr addr,
                               unsigned size)
 {