Remove "Reset your Password"

You can try the solution given at https://gist.github.com/zviryatko/37c01dcd2e24ae1674f7

Thanks,

try https://www.drupal.org/project/noreqnewpass

use Drupal\Core\Form\FormStateInterface;

/**
 * Implements hook_form_alter().
 */
function YOUR_MODULE_form_alter(&$form, FormStateInterface $form_state, $form_id) {
  if (($form_id == 'user_login_block' || $form_id == 'user_login_form')) {
    if (isset($form['more-links']['forgot_password_link'])) {
      unset ($form['more-links']['forgot_password_link']);
    }
  }
}

Have in mind that just removing that link won't disable password forgot page. To do that I created route subscriber and registered it as service (file name "RouteSubscriber.php", placed in "src" dir of YOU_MODULE). Make sure to have correct names spaces:

<?php

namespace Drupal\your_module;

use Drupal\Core\Routing\RouteSubscriberBase;
use Symfony\Component\Routing\RouteCollection;

/**
 * Listens to the dynamic route events.
 */
class RouteSubscriber extends RouteSubscriberBase {

  /**
   * {@inheritdoc}
   */
  public function alterRoutes(RouteCollection $collection) {
    // Always deny access to '/user/password'.
    if ($route = $collection->get('user.pass')) {
      $route->setRequirement('_access', 'FALSE');
    }
    if ($route = $collection->get('user.pass.http')) {
      $route->setRequirement('_access', 'FALSE');
    }
  }

}

And registered it as service in your_module.services.yml file:

services:
  your_module.route_subscriber:
    class: Drupal\your_module\RouteSubscriber
    tags:
      - { name: event_subscriber }