qemu: caps: Deprecate QEMU_CAPS_BLOCKJOB_SYNC

Interestingly, none of the qemus we have caps for supported it ...
Reviewed-by: NEric Blake <eblake@redhat.com>

src/qemu/qemu_capabilities.c

@@ -1562,7 +1562,6 @@ struct virQEMUCapsStringFlags {
 struct virQEMUCapsStringFlags virQEMUCapsCommands[] = {
     { "system_wakeup", QEMU_CAPS_WAKEUP },
     { "transaction", QEMU_CAPS_TRANSACTION },
-    { "block_stream", QEMU_CAPS_BLOCKJOB_SYNC },
     { "block-stream", QEMU_CAPS_BLOCKJOB_ASYNC },
     { "dump-guest-memory", QEMU_CAPS_DUMP_GUEST_MEMORY },
     { "query-spice", QEMU_CAPS_SPICE },

src/qemu/qemu_capabilities.h

@@ -174,7 +174,7 @@ typedef enum {
     QEMU_CAPS_TRANSACTION, /* transaction monitor command */
 
     /* 90 */
-    QEMU_CAPS_BLOCKJOB_SYNC, /* old block_job_cancel, block_stream */
+    X_QEMU_CAPS_BLOCKJOB_SYNC, /* old block_job_cancel, block_stream */
     QEMU_CAPS_BLOCKJOB_ASYNC, /* new block-job-cancel, block-stream */
     QEMU_CAPS_SCSI_CD, /* -device scsi-cd */
     QEMU_CAPS_IDE_CD, /* -device ide-cd */