fixup! feat(asset): Add common asset mixing for project and tutorial

Author: susilnem

apps/tutorial/serializers.py

@@ -325,30 +325,11 @@ class Meta:  # type: ignore[reportIncompatibleVariableOverride]
         model = Tutorial
         fields = (
             "name",
-            "project",
             "status",
             "information_pages",
             "scenarios",
         )
 
-    def validate_project(self, project: Project) -> Project:
-        assert self.instance is not None, "Tutorial does not exist."
-
-        if self.instance.status_enum == Tutorial.Status.PUBLISHED and project != self.instance.project:
-            raise serializers.ValidationError(
-                gettext("Project cannot be changed once the tutorial is published."),
-            )
-
-        if self.instance.project.project_type_enum != project.project_type_enum:
-            raise serializers.ValidationError(
-                gettext("Existing tutorial project type '%s' does not match new project type '%s'")
-                % (
-                    Project.Type(self.instance.project.project_type_enum).label,
-                    Project.Type(project.project_type_enum).label,
-                ),
-            )
-        return project
-
     def validate_status(self, new_status: Tutorial.Status | int) -> Tutorial.Status:
         assert self.instance is not None, "Tutorial does not exist."