Revert https://github.com/GoogleCloudPlatform/ramble/pull/630

lib/ramble/ramble/application.py

@@ -846,25 +846,6 @@ def validate_experiment(self):
         # Validate the new modifiers variables exist
         # (note: the base ramble variables are checked earlier too)
         self.keywords.check_required_keys(self.variables)
-        self._validate_objects()
-
-    def _validate_objects(self):
-        required_self_attrs = ["name"]
-
-        def is_attr_self_defined(obj, attr):
-            # Use the low level __dict__ to exclude inherited class attrs
-            return attr in obj.__class__.__dict__
-
-        objs = [self, *self._modifier_instances]
-        if self.package_manager is not None:
-            objs.append(self.package_manager)
-        for req_attr in required_self_attrs:
-            for obj in objs:
-                if not is_attr_self_defined(obj, req_attr):
-                    raise ApplicationError(
-                        f"Object class {obj.__class__.__name__} is missing "
-                        f"required attribute '{req_attr}'"
-                    )
 
     def _define_custom_executables(self):
         # Define custom executables