Remove unused method in PgLocks

lib/good_job/pg_locks.rb

@@ -1,21 +1,5 @@
 module GoodJob
   class PgLocks < ActiveRecord::Base
     self.table_name = 'pg_locks'.freeze
-
-    # https://www.postgresql.org/docs/9.6/view-pg-locks.html
-    # Advisory locks can be acquired on keys consisting of either a single bigint value or two integer values.
-    # A bigint key is displayed with its high-order half in the classid column, its low-order half in the objid column, and objsubid equal to 1.
-    # The original bigint value can be reassembled with the expression (classid::bigint << 32) | objid::bigint.
-    # Integer keys are displayed with the first key in the classid column, the second key in the objid column, and objsubid equal to 2.
-    # The actual meaning of the keys is up to the user. Advisory locks are local to each database, so the database column is meaningful for an advisory lock.
-    def self.advisory_lock_details
-      connection.select <<~SQL
-        SELECT *
-        FROM pg_locks
-        WHERE
-          locktype = 'advisory' AND
-          objsubid = 1
-      SQL
-    end
   end
 end