remove layout from dash_apps redirect

Author: LiamConnors

_posts/plotly_js/2020-08-21-dash_apps.md

@@ -4,7 +4,6 @@ redirect_to: https://dash.plotly.com/
 description: Analytical Apps with Dash
 name: Analytical Apps with Dash
 thumbnail: thumbnail/dash_apps.png
-layout: base
 page_type: example_index
 language: plotly_js
 display_as: file_settings