title: Woocommerce remove an action hook
body: <p>I am using woocommerce plugin in my wordpress site. I want to remove a function named 'woocommerce_checkout_coupon_form' which is hooked in to the action 'woocommerce_before_checkout_form'. </p>
  
  <p>I tried adding the below code in my theme functions.php</p>
  
  <pre><code>add_action('init','remove_coupon_text',10);
  function remove_coupon_text() {
      remove_action('woocommerce_before_checkout_form','woocommerce_checkout_login_form',10);
  } 
  </code></pre>
  
  <p>But this is not working. Any idea?</p>