Help to customize contact form.

Hi! I need to remove the “required” text next to each of my form’s required fields, it’s a short form and I prefer to put an “All fields required” notice instead.

#1 I installed the “Code Snippets” plugin by Shea Bunge
#2 I added this hook, found at https://bit.ly/2sYjJHE, to customize the form:

function jetpackcom_custom_required() {
return __( ‘This is important, you must fill it in.’, ‘plugin-textdomain’ );
}
add_filter( ‘jetpack_required_field_text’, ‘jetpackcom_custom_required’ );

Works well but “forces” me to use some text to replace the “required” wording.
Is there a way not to use any text? I thought about using an asterisk but as said before I prefer to just place a single notice for all fields.

Thanks for your help.