Issue #3207896 by andypost, alexpott: Remove URL generator priming in...

Issue #3207896 by andypost, alexpott: Remove URL generator priming in \Drupal\Tests\BrowserTestBase::installDrupal()

(cherry picked from commit 4acd1d09)

core/tests/Drupal/Tests/BrowserTestBase.php

@@ -14,7 +14,6 @@
 use Drupal\Core\Database\Database;
 use Drupal\Core\Test\FunctionalTestSetupTrait;
 use Drupal\Core\Test\TestSetupTrait;
-use Drupal\Core\Url;
 use Drupal\Core\Utility\Error;
 use Drupal\Tests\block\Traits\BlockCreationTrait;
 use Drupal\Tests\node\Traits\ContentTypeCreationTrait;
@@ -578,10 +577,6 @@ public function installDrupal() {
     // as expected.
     $this->container->get('cache_tags.invalidator')->resetChecksums();
 
-    // Generate a route to prime the URL generator with the correct base URL.
-    // @todo Remove in https://www.drupal.org/project/drupal/issues/3207896.
-    Url::fromRoute('<front>')->setAbsolute()->toString();
-
     // Explicitly call register() again on the container registered in \Drupal.
     // @todo This should already be called through
     //   DrupalKernel::prepareLegacyRequest() -> DrupalKernel::boot() but that