remove debugging

src/libthread/thread.c

diff --git a/src/libthread/thread.c b/src/libthread/thread.c
index 9a42b9e..4d02bcb 100644
--- a/src/libthread/thread.c
+++ b/src/libthread/thread.c
@@ -225,7 +225,6 @@
 	unlock(&p->lock);
 	free(p);
 	setproc(0);
-	print("e %p (tid %d)\n", p, gettid());
 	pthread_exit(nil);
 }