d04ae09aff
Since we are removing `scene.use_nodes` in #143578, most developers will have to update their python script by replacing `scene.node_tree` by `scene.compositing_node_group` in order to create a new compositing node tree anyways. So we remove `scene.node_tree`. Note: `scene->nodetree` in `scene_blend_write()` is still being written to the blend file, so forward compatibility is not affected by this PR. Pull Request: https://projects.blender.org/blender/blender/pulls/143619