Removed ROM set checking from several files.

src/machine/m_xt.c

@@ -14,6 +14,21 @@
 #include "machine.h"
 
 
+void
+machine_pc_init(const machine_t *model)
+{
+    machine_common_init(model);
+
+    pit_set_out_func(&pit, 1, pit_refresh_timer_xt);
+
+    device_add(&keyboard_pc_device);
+    device_add(&fdc_xt_device);
+    nmi_init();
+    if (joystick_type != 7)
+	device_add(&gameport_device);
+}
+
+
 void
 machine_xt_init(const machine_t *model)
 {