Remove the update permission on the link_labels table

This was added mistakenly and isn't needed.

packages/db/migrations/0079.do.rm_update_permission_on_link_labels.sql

@@ -0,0 +1,9 @@
+-- Type: DO
+-- Name: rm_update_permission_on_link_labels
+-- Description: Remove unneeded update permission on the link_labels table
+
+BEGIN;
+
+REVOKE UPDATE ON omnivore.link_labels FROM omnivore_user;
+
+COMMIT;

packages/db/migrations/0079.undo.rm_update_permission_on_link_labels.sql

@@ -0,0 +1,9 @@
+-- Type: UNDO
+-- Name: rm_update_permission_on_link_labels
+-- Description: Remove unneeded update permission on the link_labels table
+
+BEGIN;
+
+GRANT UPDATE ON omnivore.link_labels TO omnivore_user;
+
+COMMIT;