Issue #2363537 by dawehner, znerol: Update CMF routing to 1.3 and remove old code.

composer.json

composer.lock

core/lib/Drupal/Core/Routing/LazyLoadingRouteCollection.php

core/lib/Drupal/Core/Routing/RouteProvider.php

core/modules/system/src/Tests/Routing/RouteProviderTest.php

...pal/Tests/Core/Routing/LazyLoadingRouteCollectionTest.php

core/vendor/composer/autoload_namespaces.php

core/vendor/composer/autoload_psr4.php

core/vendor/composer/installed.json

core/vendor/symfony-cmf/routing/.travis.yml

core/vendor/symfony-cmf/routing/CHANGELOG.md

core/vendor/symfony-cmf/routing/CONTRIBUTING.md

core/vendor/symfony-cmf/routing/Candidates/Candidates.php

...or/symfony-cmf/routing/Candidates/CandidatesInterface.php

core/vendor/symfony-cmf/routing/ChainRouteCollection.php

core/vendor/symfony-cmf/routing/ChainRouter.php

core/vendor/symfony-cmf/routing/ChainRouterInterface.php

core/vendor/symfony-cmf/routing/ChainedRouterInterface.php

core/vendor/symfony-cmf/routing/ContentAwareGenerator.php

...vendor/symfony-cmf/routing/ContentRepositoryInterface.php