Description
bool 
sem_remove ( resource sem_identifier )
     sem_remove() removes the semaphore
     sem_identifier if it
     has been created by sem_get(), 
     otherwise generates a warning.
    
     Returns TRUE on success or FALSE on failure.
    
      After removing the semaphore, it is no more accessible.
    
 
     See also sem_get(),
     sem_release() and
     sem_acquire().