cc3200: Remove obsolete singleton heart-beat object.

cc3200/misc/mperror.c

@@ -63,10 +63,6 @@
 /******************************************************************************
  DECLARE PRIVATE DATA
  ******************************************************************************/
-#ifndef BOOTLOADER
-STATIC const mp_obj_base_t pyb_heartbeat_obj = {&pyb_heartbeat_type};
-#endif
-
 struct mperror_heart_beat {
     uint32_t off_time;
     uint32_t on_time;

cc3200/misc/mperror.h

@@ -28,10 +28,6 @@
 #ifndef MPERROR_H_
 #define MPERROR_H_
 
-#ifndef BOOTLOADER
-extern const mp_obj_type_t pyb_heartbeat_type;
-#endif
-
 extern void NORETURN __fatal_error(const char *msg);
 
 void mperror_init0 (void);