virDomainDeviceInfoFormat: delete outdated comments

This function has grown to format more than just the address.
Delete the comment completely to avoid failing to update it
in the future.

Also, the indentation is now handled by the virBuffer APIs,
so the comment about indentation no longer makes sense.

src/conf/domain_conf.c

@@ -5349,9 +5349,6 @@ virDomainVirtioOptionsFormat(virBufferPtr buf,
 }
 
 
-/* Generate a string representation of a device address
- * @info address Device address to stringify
- */
 static int ATTRIBUTE_NONNULL(2)
 virDomainDeviceInfoFormat(virBufferPtr buf,
                           virDomainDeviceInfoPtr info,
@@ -5400,7 +5397,6 @@ virDomainDeviceInfoFormat(virBufferPtr buf,
         info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_S390)
         return 0;
 
-    /* We'll be in domain/devices/[device type]/ so 3 level indent */
     virBufferAsprintf(buf, "<address type='%s'",
                       virDomainDeviceAddressTypeToString(info->type));