Noticed GRAPH_MT_channel_context_menu is unused (since DOPESHEET_MT_channel_context_menu is used in both Dopesheet & Graph/ Drivers Editor). This patch removes GRAPH_MT_channel_context_menu but adds the entries which were in that menu (but not in DOPESHEET_MT_channel_context_menu) back to the later. Namely: - Hide Selected Curves - Hide Unselected Curves - Reveal Curves - (Delete Invalid Drivers -- if in Drivers Editor) Pull Request: https://projects.blender.org/blender/blender/pulls/111384