Issue #3489022 by mondrake, larowlan, catch, el7cosmos, bbrala, alexpott,...

Issue #3489022 by mondrake, larowlan, catch, el7cosmos, bbrala, alexpott, fjgarlin, longwave, xurizaemon, rosk0, poker10, mstrelan, nick_schuch: Remove drupalci.yml

(cherry picked from commit 1f9191d2)
(cherry picked from commit 39101876)

core/drupalci.yml

-# This is the DrupalCI testbot build file for Drupal core.
-# Learn to make one for your own drupal.org project:
-# https://www.drupal.org/drupalorg/docs/drupal-ci/customizing-drupalci-testing
-_phpunit_testgroups_to_execute: &testgroups
-  # Default: all of Drupal core's test suite runs.
-  testgroups: '--all'
-  # Alternative: run only the tests for one particular module.
-  # testgroups: '--module ckeditor5'
-build:
-  assessment:
-    testing:
-      # Run code quality checks.
-      container_command.commit-checks:
-        commands:
-          - "core/scripts/dev/commit-code-check.sh --drupalci"
-        halt-on-fail: true
-      # 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'
-        suppress-deprecations: false
-        halt-on-fail: false
-        <<: *testgroups
-      run_tests.kernel:
-        types: 'PHPUnit-Kernel'
-        suppress-deprecations: false
-        halt-on-fail: false
-        <<: *testgroups
-      run_tests.build:
-        # Limit concurrency due to disk space concerns.
-        concurrency: 15
-        types: 'PHPUnit-Build'
-        suppress-deprecations: false
-        halt-on-fail: false
-        <<: *testgroups
-      run_tests.functional:
-        types: 'PHPUnit-Functional'
-        suppress-deprecations: false
-        halt-on-fail: false
-        <<: *testgroups
-      run_tests.javascript:
-        concurrency: 15
-        types: 'PHPUnit-FunctionalJavascript'
-        suppress-deprecations: false
-        halt-on-fail: false
-        <<: *testgroups
-      # Run nightwatch testing.
-      # @see https://www.drupal.org/project/drupal/issues/2869825
-      nightwatchjs: {}