diff --git a/warcprox/dedup.py b/warcprox/dedup.py
index 7a7a025..59c6040 100644
--- a/warcprox/dedup.py
+++ b/warcprox/dedup.py
@@ -55,12 +55,6 @@ class DedupDb(object):
         conn.commit()
         conn.close()
 
-    def stop(self):
-        pass
-
-    def sync(self):
-        pass
-
     def save(self, digest_key, response_record, bucket=""):
         record_id = response_record.get_header(warctools.WarcRecord.ID).decode('latin1')
         url = response_record.get_header(warctools.WarcRecord.URL).decode('latin1')
@@ -148,12 +142,6 @@ class RethinkDedupDb:
     def start(self):
         pass
 
-    def stop(self):
-        pass
-
-    def sync(self):
-        pass
-
     def save(self, digest_key, response_record, bucket=""):
         k = digest_key.decode("utf-8") if isinstance(digest_key, bytes) else digest_key
         k = "{}|{}".format(k, bucket)