Remove deprecated chapter on SWH infrastrucuture

docs/index.rst

docs/infrastructure/elasticsearch.rst

docs/infrastructure/hypervisors.rst

docs/infrastructure/index.rst

docs/infrastructure/object_storage.rst

docs/infrastructure/storage_site_amazon.rst

docs/infrastructure/storage_site_azure_euwest.rst

docs/infrastructure/storage_site_others.rst

docs/infrastructure/storage_site_rocquencourt_physical.rst

docs/infrastructure/storage_site_rocquencourt_virtual.rst