Revert "Bump src/loggregator"

This reverts commit a14d435111d81c7124d0c2efb412980a766e1789.
Revert "Update manifest fixtures"

This reverts commit 311e4921fb6cb4aebf4bbb53472e7e124784dde3.
Revert "Deploy syslog_drain_binder with doppler on loggregator VMs"

This reverts commit 71e8e0e269acc9e1da1c7e1bb515c9cb26399c63.