Remove update password endpoint?

Problem/Motivation

I'm not sure what the value of the provided `/user/{user}/password/update` endpoint is. Perhaps when it was written, JSON:API in Drupal core did not provide a way to update passwords. It does today:

/**
   * Function to update a user's password
   * @param {string} baseUrl - The base URL of the Drupal API
   * @param {string} accessToken - The user's access token
   * @param {string} refreshToken - The user's refresh token
   * @param {string} userUuid - The UUID of the user
   * @param {string} currentPassword - The current password
   * @param {string} newPassword - The new password
   * @returns {Promise} - Promise that resolves to the API response
   */
  async function updateUserPassword(baseUrl, accessToken, refreshToken, userUuid, currentPassword, newPassword) {
    // Request body with password change
    const requestBody = {
      data: {
        type: 'user--user',
        id: userUuid,
        attributes: {
          pass: {
            existing: currentPassword,
            value: newPassword
          }
        }
      }
    };

    // Make the PATCH request
    const response = await fetch(`${baseUrl}/jsonapi/user/user/${userUuid}`, {
      method: 'PATCH',
      headers: {
        'Accept': 'application/vnd.api+json',
        'Content-Type': 'application/vnd.api+json',
        'Authorization': `Bearer ${accessToken}`
      },
      body: JSON.stringify(requestBody)
    });

    // Parse and return the response
    return await response.json();
  }

Example usage:

updateUserPassword(
   'https://api.example.com',
   'your-access-token',
   'your-refresh-token',
   'user-uuid',
   'current-password',
   'new-password'
 ).then(response => console.log(response));

Proposed resolution

Remove the endpoint.