remove contact form 7 css and js to all files

contact-form.php

// remove contact form 7 from all pages, only to contact form.
function contactform7_check_dequeue() {
  $check_cf7 = false;

  if( is_page( 'contact' ) ) {
    $check_cf7 = true;
  }

  if( ! $check_cf7 ) {
    wp_dequeue_script( 'contact-form-7' );
    wp_dequeue_style( 'contact-form-7' );
  }
}

add_action( 'wp_enqueue_scripts', 'contactform7_check_dequeue', 77 );