diff --git a/src/onedb/database_schema.rb b/src/onedb/database_schema.rb
index 0e76e31b89..7ca585d17a 100644
--- a/src/onedb/database_schema.rb
+++ b/src/onedb/database_schema.rb
@@ -58,7 +58,6 @@ class OneDBBacKEnd
                 "owner_u INTEGER, group_u INTEGER, other_u INTEGER",
             logdb: "log_index INTEGER PRIMARY KEY, term INTEGER, " <<
                 "sqlcmd MEDIUMTEXT, timestamp INTEGER",
-            fed_logdb: "log_index INTEGER PRIMARY KEY, sqlcmd MEDIUMTEXT",
             history: "vid INTEGER, seq INTEGER, body MEDIUMTEXT, " <<
                      "stime INTEGER, etime INTEGER, PRIMARY KEY(vid,seq)",
             zone_pool: "oid INTEGER PRIMARY KEY, name VARCHAR(128), " <<
diff --git a/src/onedb/local/4.90.0_to_5.3.80.rb b/src/onedb/local/4.90.0_to_5.3.80.rb
index 2cdab4d331..a84cb2d4c7 100644
--- a/src/onedb/local/4.90.0_to_5.3.80.rb
+++ b/src/onedb/local/4.90.0_to_5.3.80.rb
@@ -261,41 +261,5 @@ module Migrator
     ############################################################################
     def feature_4809
         create_table(:logdb)
-        create_table(:fed_logdb)
-
-        @db.run "ALTER TABLE zone_pool RENAME TO old_zone_pool;"
-        create_table(:zone_pool)
-
-        @db.transaction do
-            @db.fetch("SELECT * FROM old_zone_pool") do |row|
-                doc = Nokogiri::XML(row[:body], nil, NOKOGIRI_ENCODING) { |c|
-                    c.default_xml.noblanks
-                }
-
-                zedp = xpath(doc, "TEMPLATE/ENDPOINT")
-
-                server_pool = doc.create_element "SERVER_POOL"
-                server      = doc.create_element "SERVER"
-
-                id   = doc.create_element "ID", 0
-                name = doc.create_element "NAME", "zone_server"
-                edp  = doc.create_element "ENDPOINT", zedp
-
-                server.add_child(id)
-                server.add_child(name)
-                server.add_child(edp)
-
-                server_pool.add_child(server)
-
-                doc.root.add_child(server_pool)
-
-                row[:body] = doc.root.to_s
-
-                @db[:zone_pool].insert(row)
-            end
-        end
-
-        @db.run "DROP TABLE old_zone_pool;"
-
     end
 end