Use this code example to exclude some On Submit actions that doesn't meet the conditional logic.

add_filter('frm_get_met_on_submit_actions', 'frm_exclude_on_submit_actions', 10, 2);
function frm_exclude_on_submit_actions( $met_actions, $args ) {
	foreach ( $met_actions as $index => $action ) {
		if ( 10 == $action->ID ) {
			unset( $met_actions[ $index ] );
		}
	}
	return $met_actions;
}