Removed unused Networks list views.

 On branch app_layouts

	deleted:    app/assets/javascripts/backbone/apps/networks/list/list_controller.js.coffee
	deleted:    app/assets/javascripts/backbone/apps/networks/list/list_view.js.coffee
	deleted:    app/assets/javascripts/backbone/apps/networks/list/templates/empty.jst.hbs
	deleted:    app/assets/javascripts/backbone/apps/networks/list/templates/layout.jst.hbs
	deleted:    app/assets/javascripts/backbone/apps/networks/list/templates/list.jst.hbs
	deleted:    app/assets/javascripts/backbone/apps/networks/list/templates/member.jst.hbs
	deleted:    app/assets/javascripts/backbone/apps/networks/networks_app.js.coffee