remove unnecessary code

Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
add full thread support

Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
clean up for pure api

Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
fix a 502 error for board api and add tests

Signed-off-by: Boqun Feng <boqun.feng@gmail.com>