10 files declare their use of PlatformInfoInterface in Acquia Purge 8

AcquiaCloudCheck.php in src/Plugin/Purge/DiagnosticCheck/AcquiaCloudCheck.php

AcquiaCloudPurger.php in src/Plugin/Purge/Purger/AcquiaCloudPurger.php

AcquiaCloudSiteHeader.php in src/Plugin/Purge/TagsHeader/AcquiaCloudSiteHeader.php

AcquiaPlatformCdnCheck.php in src/Plugin/Purge/DiagnosticCheck/AcquiaPlatformCdnCheck.php

AcquiaPlatformCdnPurger.php in src/Plugin/Purge/Purger/AcquiaPlatformCdnPurger.php

AcquiaPlatformCdnTagsHeader.php in src/Plugin/Purge/TagsHeader/AcquiaPlatformCdnTagsHeader.php

BackendBase.php in src/AcquiaPlatformCdn/BackendBase.php

BackendFactory.php in src/AcquiaPlatformCdn/BackendFactory.php

BackendInterface.php in src/AcquiaPlatformCdn/BackendInterface.php

FastlyBackend.php in src/AcquiaPlatformCdn/FastlyBackend.php