ahci: remove dead reset code

This check is dead due to an earlier conditional.
AHCI does not currently support hotplugging, so
checks to see if devices are present or not are useless.

Remove it.
Reported-by: NStefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: NJohn Snow <jsnow@redhat.com>
Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com>
Message-id: 1441140641-17631-2-git-send-email-jsnow@redhat.com

hw/ide/ahci.c

@@ -602,10 +602,7 @@ static void ahci_reset_port(AHCIState *s, int port)
     }
 
     s->dev[port].port_state = STATE_RUN;
-    if (!ide_state->blk) {
-        pr->sig = 0;
-        ide_state->status = SEEK_STAT | WRERR_STAT;
-    } else if (ide_state->drive_kind == IDE_CD) {
+    if (ide_state->drive_kind == IDE_CD) {
         pr->sig = SATA_SIGNATURE_CDROM;
         ide_state->lcyl = 0x14;
         ide_state->hcyl = 0xeb;