Switch to existing v1 dash flag

services/web/app/coffee/Features/Project/ProjectController.coffee

@@ -182,7 +182,6 @@ module.exports = ProjectController =
 						hasSubscription: results.hasSubscription[0]
 						isShowingV1Projects: results.v1Projects?
 						noV1Connection: results.v1Projects?.noConnection
-						showV1DashLink: true # TODO: false if SL
 					}
 
 					if Settings?.algolia?.app_id? and Settings?.algolia?.read_only_api_key?

services/web/app/views/project/list.pug

@@ -63,7 +63,7 @@ block content
 					aside.project-list-sidebar.col-md-2.col-xs-3
 						include ./list/side-bar
 
-					if showV1DashLink
+					if isShowingV1Projects
 						.project-list-sidebar-v1-link.col-md-2.col-xs-3
 							span Want to go back to the V1 dashboard?
 							a.btn.btn-default(href=settings.overleaf.host + "/dash") Go back to V1