diff --git a/core/drupalci.yml b/core/drupalci.yml
index 9ce9b2b1c0..0367595979 100644
--- a/core/drupalci.yml
+++ b/core/drupalci.yml
@@ -3,59 +3,13 @@
 # https://www.drupal.org/drupalorg/docs/drupal-ci/customizing-drupalci-testing
 build:
   assessment:
-    validate_codebase:
-      phplint:
-      csslint:
-        halt-on-fail: false
-      eslint:
-        # A test must pass eslinting standards check in order to continue processing.
-        halt-on-fail: false
-      phpcs:
-        # phpcs will use core's specified version of Coder.
-        sniff-all-files: false
-        halt-on-fail: false
     testing:
       # run_tests task is executed several times in order of performance speeds.
       # halt-on-fail can be set on the run_tests tasks in order to fail fast.
       # suppress-deprecations is false in order to be alerted to usages of
       # deprecated code.
-      run_tests.phpunit:
-        types: 'PHPUnit-Unit'
-        testgroups: '--all'
-        suppress-deprecations: false
-        halt-on-fail: false
-      run_tests.kernel:
-        types: 'PHPUnit-Kernel'
-        testgroups: '--all'
-        suppress-deprecations: false
-        halt-on-fail: false
-      run_tests.simpletest:
-         types: 'Simpletest'
-         testgroups: '--all'
-         suppress-deprecations: false
-         halt-on-fail: false
-      run_tests.build:
-        # Limit concurrency due to disk space concerns.
-        concurrency: 15
-        types: 'PHPUnit-Build'
-        testgroups: '--all'
-        suppress-deprecations: false
-        halt-on-fail: false
       run_tests.functional:
         types: 'PHPUnit-Functional'
-        testgroups: '--all'
-        suppress-deprecations: false
-        halt-on-fail: false
-      run_tests.javascript:
-        concurrency: 15
-        types: 'PHPUnit-FunctionalJavascript'
-        testgroups: '--all'
+        testgroups: '--class "Drupal\Tests\update\Functional\UpdateCoreTest"'
         suppress-deprecations: false
         halt-on-fail: false
-      # Run nightwatch testing.
-      # @see https://www.drupal.org/project/drupal/issues/2869825
-      nightwatchjs:
-#      container_command.drupal_project_templates:
-#        commands:
-#          - "sudo -u www-data ${SOURCE_DIR}/core/tests/scripts/test_composer_project_templates.sh"
-#        halt-on-fail: true
diff --git a/core/modules/update/tests/modules/update_test/drupal.1.0.xml b/core/modules/update/tests/modules/update_test/drupal.1.0.xml
index f2424638d3..eed9d63c27 100644
--- a/core/modules/update/tests/modules/update_test/drupal.1.0.xml
+++ b/core/modules/update/tests/modules/update_test/drupal.1.0.xml
@@ -5,7 +5,7 @@
 <dc:creator>Drupal</dc:creator>
 <api_version>8.x</api_version>
 <recommended_branch>8.0.</recommended_branch>
-<supported_branches>8.0.,8.1.</supported_branches>
+<supported_branches>8.0.</supported_branches>
 <project_status>published</project_status>
 <link>http://example.com/project/drupal</link>
   <terms>