--- a/plugins/mod_storage_sql.lua	Thu Oct 05 12:48:36 2017 +0200
+++ b/plugins/mod_storage_sql.lua	Thu Oct 05 17:22:42 2017 +0200
@@ -415,8 +415,7 @@
 
 function driver:purge(username)
 	return engine:transaction(function()
-		local stmt,err = engine:delete("DELETE FROM \"prosody\" WHERE \"host\"=? AND \"user\"=?", host, username);
-		return true, err;
+		engine:delete("DELETE FROM \"prosody\" WHERE \"host\"=? AND \"user\"=?", host, username);
 	end);
 end