qemu: remove obsolete qemuMonitorMigrateToCommand

The last use of qemuMonitorMigrateToCommand was removed years back in

  commit 2e90c9da
  Author: Daniel P. Berrange <berrange@redhat.com>
  Date:   Fri Nov 6 16:50:26 2015 +0000

    qemu: assume support for all migration protocols except rdma

Prior to that commit, 'exec:' to used to replicate the 'unix:' protocol
by spawning 'nc'.
Reviewed-by: NJán Tomko <jtomko@redhat.com>
Signed-off-by: NDaniel P. Berrangé <berrange@redhat.com>

src/qemu/qemu_monitor.c

@@ -2730,37 +2730,6 @@ qemuMonitorMigrateToHost(qemuMonitorPtr mon,
 }
 
 
-int
-qemuMonitorMigrateToCommand(qemuMonitorPtr mon,
-                            unsigned int flags,
-                            const char * const *argv)
-{
-    char *argstr;
-    char *dest = NULL;
-    int ret = -1;
-    VIR_DEBUG("argv=%p flags=0x%x", argv, flags);
-
-    QEMU_CHECK_MONITOR(mon);
-
-    argstr = virArgvToString(argv);
-    if (!argstr)
-        goto cleanup;
-
-    if (virAsprintf(&dest, "exec:%s", argstr) < 0)
-        goto cleanup;
-
-    if (mon->json)
-        ret = qemuMonitorJSONMigrate(mon, flags, dest);
-    else
-        ret = qemuMonitorTextMigrate(mon, flags, dest);
-
- cleanup:
-    VIR_FREE(argstr);
-    VIR_FREE(dest);
-    return ret;
-}
-
-
 int
 qemuMonitorMigrateCancel(qemuMonitorPtr mon)
 {

src/qemu/qemu_monitor.h

@@ -784,10 +784,6 @@ int qemuMonitorMigrateToHost(qemuMonitorPtr mon,
                              const char *hostname,
                              int port);
 
-int qemuMonitorMigrateToCommand(qemuMonitorPtr mon,
-                                unsigned int flags,
-                                const char * const *argv);
-
 int qemuMonitorMigrateCancel(qemuMonitorPtr mon);
 
 int qemuMonitorGetDumpGuestMemoryCapability(qemuMonitorPtr mon,