Fix: Error fetching message from vm-connector for start_watch_for_messages_task

Jira ticket : ALEPH-111

Problem:
When aleph-vm was starting if the vm-connector couldn't connect to the
pyaleph API , the startup crashed and systemd restarted it in a loop.

Solution:
Stop registering the sample program at startup, so the  pyaleph api
don't need to be reached at startup. This code was left as a demo but
it didn't really do anything  at the moment.

We have just commented the code if we want to reuse it in the future.

Note:
A more complete and long analysis of the problem, along with propsed
solution is on the JIRA ticket

https://aleph-im.atlassian.net/browse/ALEPH-111?focusedCommentId=10008

Author: olethanh

src/aleph/vm/orchestrator/tasks.py

@@ -123,12 +123,12 @@ async def start_watch_for_messages_task(app: web.Application):
 
     # Register an hardcoded initial program
     # TODO: Register all programs with subscriptions
-    sample_message, _ = await load_updated_message(
-        ref=ItemHash("cad11970efe9b7478300fd04d7cc91c646ca0a792b9cc718650f86e1ccfac73e")
-    )
-    if isinstance(sample_message, ProgramMessage):
-        assert sample_message.content.on.message, sample_message
-        reactor.register(sample_message)
+    # sample_message, _ = await load_updated_message(
+    #     ref=ItemHash("cad11970efe9b7478300fd04d7cc91c646ca0a792b9cc718650f86e1ccfac73e")
+    # )
+    # if isinstance(sample_message, ProgramMessage):
+    #     assert sample_message.content.on.message, sample_message
+    #     reactor.register(sample_message)
 
     app["pubsub"] = pubsub
     app["reactor"] = reactor