rm thp_swap_allocator_test when make clean

Link: https://lkml.kernel.org/r/20240829042008.6937-1-zhangjiao2@cmss.chinamobile.comSigned-off-by: zhangjiao <zhangjiao2@cmss.chinamobile.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>