qemu: Don't mess with disk->mirrorState

This patch reverts commit 76c61cdc.

VIR_DOMAIN_DISK_MIRROR_STATE_ABORT says we asked for a block job to be
aborted rather than saying it was aborted. Let's just use
VIR_DOMAIN_DISK_MIRROR_STATE_NONE consistently whenever a block job
finishes since no caller depends on VIR_DOMAIN_DISK_MIRROR_STATE_ABORT
(anymore) to check whether a block job failed or it was cancelled.
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

src/qemu/qemu_blockjob.c

@@ -174,8 +174,7 @@ qemuBlockJobEventProcess(virQEMUDriverPtr driver,
     case VIR_DOMAIN_BLOCK_JOB_CANCELED:
         virStorageSourceFree(disk->mirror);
         disk->mirror = NULL;
-        disk->mirrorState = status == VIR_DOMAIN_BLOCK_JOB_FAILED ?
-            VIR_DOMAIN_DISK_MIRROR_STATE_ABORT : VIR_DOMAIN_DISK_MIRROR_STATE_NONE;
+        disk->mirrorState = VIR_DOMAIN_DISK_MIRROR_STATE_NONE;
         disk->mirrorJob = VIR_DOMAIN_BLOCK_JOB_TYPE_UNKNOWN;
         save = true;
         diskPriv->blockjob = false;