cleanup namespace check now done by service

app/controllers/import/gitlab_projects_controller.rb

 class Import::GitlabProjectsController < Import::BaseController
   before_action :verify_gitlab_project_import_enabled
-  before_action :verify_project_and_namespace_access
   def new
     @namespace_id = project_params[:namespace_id]
@@ -36,16 +35,6 @@ class Import::GitlabProjectsController < Import::BaseController
     project_params[:file].respond_to?(:read)
   end
-  def verify_project_and_namespace_access
-    unless namespace_access?
-      render_403
-    end
-  end
-
-  def namespace_access?
-    can?(current_user, :create_projects, Namespace.find(project_params[:namespace_id]))
-  end
-
   def verify_gitlab_project_import_enabled
     render_404 unless gitlab_project_import_enabled?
   end