reverted:
--- b/core/modules/migrate_drupal/tests/fixtures/drupal7.php
+++ a/core/modules/migrate_drupal/tests/fixtures/drupal7.php
@@ -41488,18 +41488,6 @@
   'value' => 's:10:"The Slogan";',
 ))
 ->values(array(
-  'name' => 'statistics_block_top_all_num',
-  'value' => 'i:55;',
-))
-->values(array(
-  'name' => 'statistics_block_top_day_num',
-  'value' => 'i:30;',
-))
-->values(array(
-  'name' => 'statistics_block_top_last_num',
-  'value' => 'i:9;',
-))
-->values(array(
   'name' => 'statistics_count_content_views',
   'value' => 'i:1;',
 ))
reverted:
--- b/core/modules/statistics/migration_templates/statistics_popular_block_settings.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-id: statistics_popular_block_settings
-label: Statistics popular block configuration
-migration_tags:
-  - Drupal 6
-  - Drupal 7
-source:
-  plugin: variable
-  variables:
-    - statistics_block_top_day_num
-    - statistics_block_top_all_num
-    - statistics_block_top_last_num
-process:
-  top_day_num: statistics_block_top_day_num
-  top_all_num: statistics_block_top_all_num
-  top_last_num: statistics_block_top_last_num
-destination:
-  plugin: config
-  config_name: block.settings.statistics_popular_block
reverted:
--- b/core/modules/statistics/src/Tests/Migrate/MigrateStatisticsPopularBlockSettingsTest.php
+++ /dev/null
@@ -1,44 +0,0 @@
-<?php
-
-/**
- * @file
- * Contains \Drupal\statistics\Tests\Migrate\MigrateStatisticsPopularBlockSettingsTest.
- */
-
-namespace Drupal\statistics\Tests\Migrate;
-
-use Drupal\config\Tests\SchemaCheckTestTrait;
-use Drupal\migrate_drupal\Tests\d7\MigrateDrupal7TestBase;
-
-/**
- * Tests migration of settings for the Popular block.
- *
- * @group statistics
- */
-class MigrateStatisticsPopularBlockSettingsTest extends MigrateDrupal7TestBase {
-
-  use SchemaCheckTestTrait;
-
-  public static $modules = ['statistics'];
-
-  /**
-   * {@inheritdoc}
-   */
-  protected function setUp() {
-    parent::setUp();
-    $this->installConfig(['statistics']);
-    $this->executeMigration('statistics_popular_block_settings');
-  }
-
-  /**
-   * Tests migration of Popular block settings into configuration.
-   */
-  public function testMigration() {
-    $config = \Drupal::config('block.settings.statistics_popular_block')->get();
-    $this->assertIdentical(55, $config['top_all_num']);
-    $this->assertIdentical(30, $config['top_day_num']);
-    $this->assertIdentical(9, $config['top_last_num']);
-    $this->assertConfigSchema(\Drupal::service('config.typed'), 'block.settings.statistics_popular_block', $config);
-  }
-
-}