tpm-tis: remove unused locty_number

This field slipped in commit 5086bf97.
Signed-off-by: NMarc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: NStefan Berger <stefanb@linux.vnet.ibm.com>
Signed-off-by: NStefan Berger <stefanb@linux.vnet.ibm.com>

hw/tpm/tpm_tis.c

@@ -89,7 +89,6 @@ struct TPMState {
     qemu_irq irq;
     uint32_t irq_num;
 
-    uint8_t     locty_number;
     TPMBackendCmd cmd;
 
     char *backend;