Fix example-fsm-55.

ChangeLog

@@ -1,3 +1,7 @@
+2017-11-18  NIIBE Yutaka  <gniibe@fsij.org>
+
+	* example-fsm-55/hh.c (main): Just return.
+
 2017-11-17  NIIBE Yutaka  <gniibe@fsij.org>
 
 	* mcu/chx-stm32f103.c (configure_clock): Change prescaler on

example-fsm-55/debian-logo.c

@@ -365,8 +365,6 @@ text_display (uint8_t kind)
 }
 
 
-static void setup_scr_sleepdeep (void);
-
 int
 main (int argc, const char *argv[])
 {
@@ -421,7 +419,5 @@ main (int argc, const char *argv[])
   chopstx_join (led_thd, NULL);
 
   chopstx_conf_idle (4);
-  chopstx_poll (NULL, 0, NULL);
-
   return 0;
 }

example-fsm-55/hh.c

@@ -407,7 +407,5 @@ main (int argc, const char *argv[])
   chopstx_join (led_thd, NULL);
 
   chopstx_conf_idle (4);
-  chopstx_poll (NULL, 0, NULL);
-
   return 0;
 }