Deleted a non used volume

docker-compose.yml

@@ -44,7 +44,7 @@ services:
       - bitcoin_data:/home/bitcoin/.bitcoin
     entrypoint: >
       sh -c "cp /tmp/blindbit.toml /root/.blindbit-oracle/blindbit.toml &&
-             ./main"
+            ./main -datadir /root/.blindbit-oracle"
     networks:
       btcnet:
         aliases:
@@ -152,7 +152,6 @@ volumes:
     name: 4nk_node_bitcoin_data
   blindbit_data:
   sdk_data:
-  db_data:
 
 networks:
   btcnet: