Remove unused pthread_t typedefs from struct pool.
diff --git a/miner.h b/miner.h
index 00291be..eee30f1 100644
--- a/miner.h
+++ b/miner.h
@@ -968,8 +968,6 @@ struct pool {
struct thread_q *getwork_q;
pthread_t longpoll_thread;
- pthread_t submit_thread;
- pthread_t getwork_thread;
int curls;
pthread_cond_t cr_cond;