Use ActiveRecord#toggle! Instead of defining a new one

[ci skip]

app/controllers/admin/geo_nodes_controller.rb

@@ -44,7 +44,7 @@ class Admin::GeoNodesController < Admin::ApplicationController
     if @node.primary?
       flash[:alert] = "Primary node can't be disabled."
     else
-      @node.toggle!
+      @node.toggle!(:enabled)
 
       new_status = @node.enabled? ? 'enabled' : 'disabled'
       flash[:notice] = "Node #{@node.url} was successfully #{new_status}."

app/models/geo_node.rb

@@ -39,10 +39,6 @@ class GeoNode < ActiveRecord::Base
     !primary
   end
 
-  def toggle!
-    update_attribute(:enabled, !enabled)
-  end
-
   def uri
     if relative_url_root
       relative_url = relative_url_root.starts_with?('/') ? relative_url_root : "/#{relative_url_root}"