Don't stream in ready streaming since a pull was already sent

Author: bigmontz

packages/bolt-connection/src/bolt/stream-observers.js

@@ -599,7 +599,7 @@ const _states = {
     name: () => {
       return 'READY_STREAMING'
     },
-    pull: streamObserver => streamObserver._more()
+    pull: () => {}
   },
   READY: {
     // reactive start state