msggen: Ignore `state_changes` in grpc2py

It's being skipped in grpc so we don't have it later anyway.

contrib/msggen/msggen/gen/grpc2py.py

@@ -17,7 +17,7 @@ def decamelcase(c):
 
 
 override = {
-
+    'ListPeers.peers[].channels[].state_changes[]': None,
 }
 
 
@@ -92,6 +92,8 @@ class Grpc2PyGenerator(IGenerator):
             self.converters[field.path] = "str(m.{{name}})"
 
     def generate_composite(self, prefix, field: CompositeField):
+        if override.get(field.path, "") is None:
+            return
         name = field.name.normalized()
         if prefix:
             prefix = f"{prefix}_{str(name).lower()}"
@@ -129,6 +131,8 @@ class Grpc2PyGenerator(IGenerator):
                 self.write(f'        "{name}": [{rhs} for i in {rhs}], # ArrayField[primitive] in generate_composite\n', cleanup=False)
 
             elif isinstance(f, ArrayField):
+                if override.get(f.path, "") is None:
+                    continue
                 rhs = self.converters[f.path]
 
                 self.write(f'        "{name}": [{rhs} for i in m.{name}],  # ArrayField[composite] in generate_composite\n', cleanup=False)

contrib/pyln-testing/pyln/testing/grpc2py.py

@@ -112,16 +112,6 @@ def listpeers_peers_channels_alias2py(m):
     })
 
 
-def listpeers_peers_channels_state_changes2py(m):
-    return remove_default({
-        "timestamp": m.timestamp,  # PrimitiveField in generate_composite
-        "old_state": str(m.old_state),  # EnumField in generate_composite
-        "new_state": str(m.new_state),  # EnumField in generate_composite
-        "cause": str(m.cause),  # EnumField in generate_composite
-        "message": m.message,  # PrimitiveField in generate_composite
-    })
-
-
 def listpeers_peers_channels_htlcs2py(m):
     return remove_default({
         "direction": str(m.direction),  # EnumField in generate_composite
@@ -172,7 +162,6 @@ def listpeers_peers_channels2py(m):
         "their_to_self_delay": m.their_to_self_delay,  # PrimitiveField in generate_composite
         "our_to_self_delay": m.our_to_self_delay,  # PrimitiveField in generate_composite
         "max_accepted_htlcs": m.max_accepted_htlcs,  # PrimitiveField in generate_composite
-        "state_changes": [listpeers_peers_channels_state_changes2py(i) for i in m.state_changes],  # ArrayField[composite] in generate_composite
         "status": [m.status for i in m.status], # ArrayField[primitive] in generate_composite
         "in_payments_offered": m.in_payments_offered,  # PrimitiveField in generate_composite
         "in_offered_msat": amount2msat(m.in_offered_msat),  # PrimitiveField in generate_composite