feat: remove custom fields

abstract/class-integration.php

assets/css/wpct7-theme.css

assets/js/fieldset-control-js.php

assets/js/wpcf7-swv-validators.js

includes/fields/gf/iban/class-addon.php

includes/fields/gf/iban/class-field-adapter.php

includes/fields/gf/iban/class-field.php

includes/fields/gf/vat-id/class-addon.php

includes/fields/gf/vat-id/class-field-adapter.php

includes/fields/gf/vat-id/class-field.php

includes/fields/wpcf7/conditional/class-field.php

includes/fields/wpcf7/conditional/class-rule.php

includes/fields/wpcf7/conditionalfile/class-field.php

includes/fields/wpcf7/conditionalfile/class-rule.php

includes/fields/wpcf7/files/class-field.php

includes/fields/wpcf7/files/class-rule.php

includes/fields/wpcf7/iban/class-field.php

includes/fields/wpcf7/iban/class-rule.php

includes/integrations/gf/class-integration.php

package-lock.json