docs(readme): fix `poetry install` command line
@@ -92,12 +92,6 @@ git clone git@github.com:HathorNetwork/hathor-core.git && cd hathor-core
poetry install
```
-*Optionally* if you've installed the RocksDB lib:
-
-```
-poetry install -E rocksdb
-```
-
### Running the full-node
```
