Fix duplicate virtual button 13/14 issue.

BTN_TRIGGER_HAPPY and BTN_TRIGGER_HAPPY1 map to the same input event
code.  If both are present in buttons_ref.h, physical button mapped to
virtual button 13 and physical button mapped to virtual 14 will BOTH
generate events on virtual button 13 and ANY mappings higher than 13
will end up being mapped to a virtual button index one less than
intended

buttons_ref.h

@@ -2,8 +2,8 @@
 #define BUTTONS_REF_H
 #include <linux/uinput.h>	//Reference to keycodes
 
-#define BUTTONS_SIZE		54
-#define AXES_SIZE			19
+#define BUTTONS_SIZE		53
+#define AXES_SIZE		19
 
 namespace buttons_ref
 {
@@ -22,7 +22,6 @@ BTN_BASE4,
 BTN_BASE5,
 BTN_BASE6,
 BTN_DEAD,
-BTN_TRIGGER_HAPPY,
 BTN_TRIGGER_HAPPY1,
 BTN_TRIGGER_HAPPY2,
 BTN_TRIGGER_HAPPY3,