examples/heat/heat.c: remove wrong call to starpu_helper_cublas_init()

examples/heat/heat.c

@@ -752,8 +752,6 @@ int main(int argc, char **argv)
 		if (check)
 			solve_system(DIM, newsize, result, RefArray, Bformer, A, B);
 
-		starpu_helper_cublas_init();
-
 		starpu_shutdown();
 	}