ITTI: remove useless log_scheduler() function

The primary motivation here is to remove a VLA, as in the parent
commits.  Closer inspection revealed that (1) it is only used by the LTE
UE, and (2) it only logs some data which we likely don't need. So I
simply removed this function.

executables/lte-ue.c

@@ -1740,8 +1740,6 @@ void *UE_thread(void *arg) {
     oai_exit=1;
   }
 
-  log_scheduler(__func__);
-
   while (!oai_exit) {
     AssertFatal ( 0== pthread_mutex_lock(&UE->proc.mutex_synch), "");
     int instance_cnt_synch = UE->proc.instance_cnt_synch;