functions.php

add_action( 'subscription_expired', 'wc_custom_remove_subscription', 5, 2 );
function wc_custom_remove_subscription( $user_id, $subscription_key ) {
    $subscription = WC_Subscriptions_Manager::get_subscription( $subscription_key );
    if ( isset( $subscription['product_id'] ) && isset( $subscription['order_id'] ) ) {
        $product_id = $subscription['product_id'];

        if ( $product_id == 100 ) {
            remove_action( 'subscription_expired', array( 'Groups_WS_Handler', 'subscription_expired' ), 10, 2 );
        }
    }
}