Drupal 8 project has a 2 webforms:

 - Webform "ABC" 
 - Webform "123"

**Explanation of the process:**

When Webform "ABC" is submitted, a new "node" is created and the "Sid" used to create this node is recorded inside a "text" field (field_submission_sid) on this created node.

Now, when Webform "123" is loaded, the value of (field_submission_sid) is populated inside a 'text' element (submission_to_delete)... and when the Webform "123" is submitted, a **custom handler** will delete the submission of **sid value = (submission_to_delete)**

The custom handler is working but I believe there is a better solution... so please I need your help ?

**Custom handler:**

    namespace Drupal\custom_module\Plugin\WebformHandler;
    use Drupal\Core\Session\AccountInterface;
    use Drupal\Core\Serialization\Yaml;
    use Drupal\Core\Form\FormStateInterface;
    use Drupal\node\Entity\Node;
    use Drupal\webform\WebformInterface;
    use Drupal\webform\Plugin\WebformHandlerBase;
    use Drupal\webform\webformSubmissionInterface;
    use Drupal\webform\Entity\WebformSubmission;
     * Delete a 'webform Submission' using its "SID" retrieved from a populated webform submission value.
     * @WebformHandler(
     *   id = "Delete a webform Submission using its sid",
     *   label = @Translation("Delete a webform Submission using its sid"),
     *   category = @Translation("Entity Delete"),
     *   description = @Translation("Delete a webform Submission using its sid retrieved from a populated webform submission valu"),
     *   cardinality = \Drupal\webform\Plugin\WebformHandlerInterface::CARDINALITY_UNLIMITED,
     *   results = \Drupal\webform\Plugin\WebformHandlerInterface::RESULTS_PROCESSED,
     *   submission = \Drupal\webform\Plugin\WebformHandlerInterface::SUBMISSION_REQUIRED,
     * )
    class DeleteSidWebformHandler extends WebformHandlerBase {
       * {@inheritdoc}
      // Function to be fired while submitting the Webform.
      public function submitForm(array &$form, FormStateInterface $form_state, WebformSubmissionInterface $webform_submission) {
        // Get an array of the values from the submission.
        $values = $webform_submission->getData();
    	// Load 'submission' object from webform-submission populated data.	
    	//get (SID) from (submission_to_delete) text element available on the webform
    	$sid = $values["submission_to_delete"];
    	$webform_submission = \Drupal\webform\Entity\WebformSubmission::load($sid);
    	//Delete the Submission

**If you notice, I am loading the submission first then i am deleting it...**

is there a better solution where I can delete the submission directly without first have to load it ?
maybe something like `$webform_submission = \Drupal\webform\Entity\WebformSubmission::delete(submission_to_delete);`


I noticed if the 'webform submission' is not available (Ex: An admin deleted by mistake) so the value of `$sid` will be `NULL` and the below error is generated:

    Error: Call to a member function delete() on null in Drupal\custom_module\Plugin\WebformHandler\DeleteSidWebformHandler->submitForm()

How to add an **if statement** to check if **$sid value is empty** then do nothing otherwise **execute code**.

Thank you,