Drop nodes.external_url

The column moved to page.rb and was now written only by publish_draft!
and by the chapter seed, and read by nothing.

lib/tasks/pages.rake goes with it. backfill_external_url reads the dropped
column. backfill_address is spent and no longer safe to re-run.

1 files changed, 0 insertions, 1 deletions

diff --git a/test/models/node_test.rb b/test/models/node_test.rb
index 735d2abe..39be6d32 100644
--- a/test/models/node_test.rb
+++ b/test/models/node_test.rb
@@ -1077,7 +1077,6 @@ class NodeTest < ActiveSupport::TestCase
     node.draft.update!(:external_url => "https://example.org")
     node.publish_draft!(users(:aaron))
 
-    assert_equal "https://example.org", node.reload.external_url
     assert_equal "https://example.org", node.head.external_url
   end