Removed the last remnants of device_t.poll().

src/device.c

@@ -484,21 +484,6 @@ device_has_config(const device_t *dev)
     return (c > 0) ? 1 : 0;
 }
 
-int
-device_poll(const device_t *dev)
-{
-    for (uint16_t c = 0; c < DEVICE_MAX; c++) {
-        if (devices[c] != NULL) {
-            if (devices[c] == dev) {
-                if (devices[c]->poll)
-                    return (devices[c]->poll(device_priv[c]));
-            }
-        }
-    }
-
-    return 0;
-}
-
 void
 device_get_name(const device_t *dev, int bus, char *name)
 {

src/device/keyboard_at.c

@@ -2221,7 +2221,7 @@ const device_t keyboard_at_generic_device = {
     .init          = keyboard_at_init,
     .close         = keyboard_at_close,
     .reset         = NULL,
-     .poll         = NULL,
+    .available     = NULL,
     .speed_changed = NULL,
     .force_redraw  = NULL,
     .config        = keyboard_at_config

src/include/86box/device.h

@@ -166,7 +166,6 @@ typedef struct _device_ {
     void (*close)(void *priv);
     void (*reset)(void *priv);
     int  (*available)(void);
-    int  (*poll)(void *priv);
     void (*speed_changed)(void *priv);
     void (*force_redraw)(void *priv);
 
@@ -203,7 +202,6 @@ extern void  device_reset_all(uint32_t match_flags);
 extern void *device_find_first_priv(uint32_t match_flags);
 extern void *device_get_priv(const device_t *dev);
 extern int   device_available(const device_t *dev);
-extern int   device_poll(const device_t *dev);
 extern void  device_speed_changed(void);
 extern void  device_force_redraw(void);
 extern void  device_get_name(const device_t *dev, int bus, char *name);