qemu: monitor: unexport qemuMonitorJSONTransactionAdd

Now it's not used outside of qemu_monitor_json.c.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NEric Blake <eblake@redhat.com>

src/qemu/qemu_monitor_json.c

@@ -498,7 +498,7 @@ qemuMonitorJSONHasError(virJSONValuePtr reply,
  *
  * Returns 0 on success and -1 on error.
  */
-int
+static int
 qemuMonitorJSONTransactionAdd(virJSONValuePtr actions,
                               const char *cmdname,
                               ...)

src/qemu/qemu_monitor_json.h

@@ -28,10 +28,6 @@
 #include "cpu/cpu.h"
 #include "util/virgic.h"
 
-int qemuMonitorJSONTransactionAdd(virJSONValuePtr actions,
-                                  const char *cmdname,
-                                  ...);
-
 int qemuMonitorJSONIOProcessLine(qemuMonitorPtr mon,
                                  const char *line,
                                  qemuMonitorMessagePtr msg);