The test for pstat was removed from configure by
9db300ce6e3 but not
from meson.build. Do that now.
['posix_fadvise'],
['posix_fallocate'],
['ppoll'],
- ['pstat'],
['pthread_barrier_wait', {'dependencies': [thread_dep]}],
['pthread_is_threaded_np', {'dependencies': [thread_dep]}],
['sem_init', {'dependencies': [rt_dep, thread_dep], 'skip': sema_kind != 'unnamed_posix', 'define': false}],