Fix readme after rebase

Author: roger2hk

deployment/live/gcp/test/README.md

@@ -146,8 +146,6 @@ go run ./cmd/gcp/ \
   --project_id=${GOOGLE_PROJECT} \
   --bucket=${GOOGLE_PROJECT}-${TESSERA_BASE_NAME}-bucket \
   --spanner_db_path=projects/${GOOGLE_PROJECT}/instances/${TESSERA_BASE_NAME}/databases/${TESSERA_BASE_NAME}-db \
-  --private_key=./testdata/ct-http-server.privkey.pem \
-  --password=dirk \
   --roots_pem_file=/tmp/hammercfg/roots.pem \
   --origin=${TESSERA_BASE_NAME} \
   --spanner_dedup_db_path=projects/${GOOGLE_PROJECT}/instances/${TESSERA_BASE_NAME}/databases/${TESSERA_BASE_NAME}-dedup-db \