Remove now-unused helper show_thumbnail_for_editor
Remove now-unused helper show_thumbnail_for_editor

Juuro/publify,whithajess/publify,Juuro/publify,sf-wdi-25/publify_debugging_lab,drakontia/publify,sf-wdi-25/publify_debugging_lab,solanolabs/publify,solanolabs/publify,seyedrazavi/publify,sf-wdi-25/publify_debugging_lab,drakontia/publify,Juuro/publify,SF-WDI-LABS/publify_debugging_lab,publify/publify,whithajess/publify,SF-WDI-LABS/publify_debugging_lab,publify/publify,whithajess/publify,publify/publify,SF-WDI-LABS/publify_debugging_lab,seyedrazavi/publify,solanolabs/publify,seyedrazavi/publify