hmp: Clean up declarations for long-gone info handlers

Leftovers from
d1f2964 qapi: Convert query-spice
791e7c8 qapi: Convert query-migrate
0fe6a7f slirp: Drop statistic code

Signed-off-by: Markus Armbruster <armbru@redhat.com>

include/migration/migration.h

diff --git a/include/migration/migration.h b/include/migration/migration.h
index f37348b..703b7d7 100644
--- a/include/migration/migration.h
+++ b/include/migration/migration.h
@@ -71,10 +71,6 @@
 
 uint64_t migrate_max_downtime(void);
 
-void do_info_migrate_print(Monitor *mon, const QObject *data);
-
-void do_info_migrate(Monitor *mon, QObject **ret_data);
-
 void exec_start_incoming_migration(const char *host_port, Error **errp);
 
 void exec_start_outgoing_migration(MigrationState *s, const char *host_port, Error **errp);

include/sysemu/sysemu.h

diff --git a/include/sysemu/sysemu.h b/include/sysemu/sysemu.h
index 748d059..c42649c 100644
--- a/include/sysemu/sysemu.h
+++ b/include/sysemu/sysemu.h
@@ -90,9 +90,6 @@
 uint64_t qemu_savevm_state_pending(QEMUFile *f, uint64_t max_size);
 int qemu_loadvm_state(QEMUFile *f);
 
-/* SLIRP */
-void do_info_slirp(Monitor *mon);
-
 typedef enum DisplayType
 {
     DT_DEFAULT,

include/ui/qemu-spice.h

diff --git a/include/ui/qemu-spice.h b/include/ui/qemu-spice.h
index 762e063..25b94c7 100644
--- a/include/ui/qemu-spice.h
+++ b/include/ui/qemu-spice.h
@@ -45,9 +45,6 @@
                             const char *subject,
                             MonitorCompletion cb, void *opaque);
 
-void do_info_spice_print(Monitor *mon, const QObject *data);
-void do_info_spice(Monitor *mon, QObject **ret_data);
-
 CharDriverState *qemu_chr_open_spice_vmc(const char *type);
 #if SPICE_SERVER_VERSION >= 0x000c02
 CharDriverState *qemu_chr_open_spice_port(const char *name);