removed implements gap

dta/privacy/provider.php

@@ -28,10 +28,7 @@ use core_privacy\local\request\writer;
 use core_privacy\local\request\contextlist;
 use mod_assign\privacy\assign_plugin_request_data;
 
-class provider implements
-        // This plugin does store personal user data.
-        \core_privacy\local\metadata\provider,
-        \core_privacy\local\request\shared_data_provider,
+class provider implements \core_privacy\local\metadata\provider,
         \mod_assign\privacy\assignsubmission_provider,
         \mod_assign\privacy\assignsubmission_user_provider {