freetdm: remove ftdm_cpu_monitor_disable API

libs/freetdm/sample/boost/ftdmstart.c

@@ -313,13 +313,6 @@ int main(int argc, char *argv[])
 	/* set the logging level to use */
 	ftdm_global_set_default_logger(FTDM_LOG_LEVEL_DEBUG);
 
-	/* this is optional. 
-	 * cpu monitor is a default feature in freetdm that launches 1 thread
-	 * to monitor system-wide CPU usage. If it goes above a predefined threshold
-	 * it will stop accepting calls to try to protect the quality of current calls */
-	ftdm_cpu_monitor_disable();
-
-
 	/* Initialize the FTDM library */
 	if (ftdm_global_init() != FTDM_SUCCESS) {
 		fprintf(stderr, "Error loading FreeTDM\n");

libs/freetdm/sample/dso/ftdmload.c

@@ -134,8 +134,6 @@ int main(int argc, char *argv[])
 	
 	ftdm_global_set_default_logger(FTDM_LOG_LEVEL_DEBUG);
 
-	ftdm_cpu_monitor_disable();
-
 	if (ftdm_global_init() != FTDM_SUCCESS) {
 		fprintf(stderr, "Error loading FreeTDM\n");
 		exit(-1);

libs/freetdm/sample/sched/ftdmsched.c

@@ -73,8 +73,6 @@ int main(int argc, char *argv[])
 	
 	ftdm_global_set_default_logger(FTDM_LOG_LEVEL_DEBUG);
 
-	ftdm_cpu_monitor_disable();
-
 	if (ftdm_global_init() != FTDM_SUCCESS) {
 		fprintf(stderr, "Error loading FreeTDM\n");
 		exit(-1);

libs/freetdm/src/include/freetdm.h

@@ -1176,16 +1176,6 @@ FT_DECLARE(ftdm_iterator_t *) ftdm_span_get_chan_iterator(const ftdm_span_t *spa
  */
 FT_DECLARE(char *) ftdm_api_execute(const char *cmd);
 
-/*! 
- * \brief Disables CPU monitoring
- *
- * \note CPU monitoring is enabled by default. This means a thread will be launched at startup (ftdm_global_init)
- *       with the sole purpose of monitoring system-wide CPU usage. If the CPU usage raises above a defined
- *       threshold, no new calls will be accepted (neither incoming or outgoing)
- *
- */
-FT_DECLARE(void) ftdm_cpu_monitor_disable(void);
-
 /*! 
  * \brief Create a configuration node
  *