reworked memory leak solution in sylvan according to Tom van Dijks hints

resources/3rdparty/sylvan/src/lace.c

@@ -715,9 +715,6 @@ VOID_TASK_1(lace_steal_loop, int*, quit)
             } while (__lace_worker->enabled == 0);
         }
     }
-
-    // Unmap the virtual memory from the worker.
-    munmap(workers_memory[worker_id], workers_memory_size);
 }
 
 /**
@@ -1091,6 +1088,12 @@ void lace_exit()
     lace_resume();
     lace_barrier();
 
+    // Free the memory of the workers.
+    for (unsigned int i=0; i<n_workers; i++) munmap(workers_memory[i], workers_memory_size);
+    free(workers_memory);
+    free(workers);
+    free(workers_p);
+    
     // finally, destroy the barriers
     lace_barrier_destroy();
     pthread_barrier_destroy(&suspend_barrier);