diff --git a/include/hw/boards.h b/include/hw/boards.h
index 4fe2ce5..3e9a92c 100644
--- a/include/hw/boards.h
+++ b/include/hw/boards.h
@@ -9,36 +9,10 @@
 #include "hw/qdev.h"
 #include "qom/object.h"
 
-
-typedef void QEMUMachineInitFunc(MachineState *ms);
-
-typedef void QEMUMachineResetFunc(void);
-
-typedef void QEMUMachineHotAddCPUFunc(const int64_t id, Error **errp);
-
-typedef int QEMUMachineGetKvmtypeFunc(const char *arg);
-
-struct QEMUMachine {
-    const char *name;
-    const char *desc;
-    QEMUMachineInitFunc *init;
-    QEMUMachineGetKvmtypeFunc *kvm_type;
-    BlockInterfaceType block_default_type;
-    int max_cpus;
-    unsigned int
-        no_sdcard:1,
-        has_dynamic_sysbus:1;
-    int is_default;
-    const char *default_machine_opts;
-    const char *default_boot_order;
-};
-
 void memory_region_allocate_system_memory(MemoryRegion *mr, Object *owner,
                                           const char *name,
                                           uint64_t ram_size);
 
-int qemu_register_machine(QEMUMachine *m);
-
 #define TYPE_MACHINE_SUFFIX "-machine"
 
 /* Machine class name that needs to be used for class-name-based machine
@@ -69,7 +43,6 @@ bool machine_mem_merge(MachineState *machine);
 
 /**
  * MachineClass:
- * @qemu_machine: #QEMUMachine
  * @get_hotplug_handler: this function is called during bus-less
  *    device hotplug. If defined it returns pointer to an instance
  *    of HotplugHandler object, which handles hotplug operation
diff --git a/include/qemu/typedefs.h b/include/qemu/typedefs.h
index 97ac727..ce82c64 100644
--- a/include/qemu/typedefs.h
+++ b/include/qemu/typedefs.h
@@ -67,7 +67,6 @@ typedef struct Property Property;
 typedef struct QEMUBH QEMUBH;
 typedef struct QemuConsole QemuConsole;
 typedef struct QEMUFile QEMUFile;
-typedef struct QEMUMachine QEMUMachine;
 typedef struct QEMUSGList QEMUSGList;
 typedef struct QEMUSizedBuffer QEMUSizedBuffer;
 typedef struct QEMUTimerListGroup QEMUTimerListGroup;
diff --git a/include/sysemu/blockdev.h b/include/sysemu/blockdev.h
index 3104150..a00be94 100644
--- a/include/sysemu/blockdev.h
+++ b/include/sysemu/blockdev.h
@@ -20,7 +20,7 @@ void blockdev_auto_del(BlockBackend *blk);
 typedef enum {
     IF_DEFAULT = -1,            /* for use with drive_add() only */
     /*
-     * IF_IDE must be zero, because we want QEMUMachine member
+     * IF_IDE must be zero, because we want MachineClass member
      * block_default_type to default-initialize to IF_IDE
      */
     IF_IDE = 0,
diff --git a/include/sysemu/sysemu.h b/include/sysemu/sysemu.h
index 1f6ff8f..c439975 100644
--- a/include/sysemu/sysemu.h
+++ b/include/sysemu/sysemu.h
@@ -195,7 +195,7 @@ void device_add_bootindex_property(Object *obj, int32_t *bootindex,
 void restore_boot_order(void *opaque);
 void validate_bootdevices(const char *devices, Error **errp);
 
-/* handler to set the boot_device order for a specific type of QEMUMachine */
+/* handler to set the boot_device order for a specific type of MachineClass */
 typedef void QEMUBootSetHandler(void *opaque, const char *boot_order,
                                 Error **errp);
 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque);
diff --git a/vl.c b/vl.c
index 3b92635..e211f6a 100644
--- a/vl.c
+++ b/vl.c
@@ -1429,42 +1429,6 @@ void hmp_usb_del(Monitor *mon, const QDict *qdict)
 
 MachineState *current_machine;
 
-/*
- * Transitional class registration/init used for converting from
- * legacy QEMUMachine to MachineClass.
- */
-static void qemu_machine_class_init(ObjectClass *oc, void *data)
-{
-    MachineClass *mc = MACHINE_CLASS(oc);
-    QEMUMachine *qm = data;
-    mc->desc = qm->desc;
-    mc->init = qm->init;
-    mc->kvm_type = qm->kvm_type;
-    mc->block_default_type = qm->block_default_type;
-    mc->max_cpus = qm->max_cpus;
-    mc->no_sdcard = qm->no_sdcard;
-    mc->has_dynamic_sysbus = qm->has_dynamic_sysbus;
-    mc->is_default = qm->is_default;
-    mc->default_machine_opts = qm->default_machine_opts;
-    mc->default_boot_order = qm->default_boot_order;
-}
-
-int qemu_register_machine(QEMUMachine *m)
-{
-    char *name = g_strdup_printf(MACHINE_TYPE_NAME("%s"), m->name);
-    TypeInfo ti = {
-        .name       = name,
-        .parent     = TYPE_MACHINE,
-        .class_init = qemu_machine_class_init,
-        .class_data = (void *)m,
-    };
-
-    type_register(&ti);
-    g_free(name);
-
-    return 0;
-}
-
 static MachineClass *find_machine(const char *name)
 {
     GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
