Issue #2356845 by alexpott: Remove the assetic library.

composer.json

composer.lock

core/vendor/composer/autoload_files.php

core/vendor/composer/autoload_namespaces.php

core/vendor/composer/installed.json

core/vendor/kriswallsmith/assetic/CHANGELOG-1.0.md

core/vendor/kriswallsmith/assetic/CHANGELOG-1.1.md

core/vendor/kriswallsmith/assetic/Gemfile

core/vendor/kriswallsmith/assetic/LICENSE

core/vendor/kriswallsmith/assetic/README.md

core/vendor/kriswallsmith/assetic/composer.json

core/vendor/kriswallsmith/assetic/package.json

...or/kriswallsmith/assetic/src/Assetic/Asset/AssetCache.php

...iswallsmith/assetic/src/Assetic/Asset/AssetCollection.php

...th/assetic/src/Assetic/Asset/AssetCollectionInterface.php

...riswallsmith/assetic/src/Assetic/Asset/AssetInterface.php

...riswallsmith/assetic/src/Assetic/Asset/AssetReference.php

...dor/kriswallsmith/assetic/src/Assetic/Asset/BaseAsset.php

...dor/kriswallsmith/assetic/src/Assetic/Asset/FileAsset.php

...dor/kriswallsmith/assetic/src/Assetic/Asset/GlobAsset.php