threadCreate(): don't create detached threads

A detached thread cannot be joined with pthread_join(). However, this
is crucial for correct resetting of the nr-softmodem. Therefore, do not
create threads in detached state.

common/utils/system.c

@@ -231,8 +231,6 @@ void threadCreate(pthread_t* t, void * (*func)(void*), void * param, char* name,
   int settingPriority = 1;
   ret=pthread_attr_init(&attr);
   AssertFatal(ret==0,"ret: %d, errno: %d\n",ret, errno);
-  ret=pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
-  AssertFatal(ret==0,"ret: %d, errno: %d\n",ret, errno);
   
   if (checkIfFedoraDistribution())
     if (checkIfGenericKernelOnFedora())