Update Stellio version

Author: jason-fox

.env

@@ -10,7 +10,7 @@ SCORPIO_PORT=9090
 SCORPIO_VERSION=2.1.13
 
 # Stellio variables
-STELLIO_DOCKER_TAG=v1.7.2
+STELLIO_DOCKER_TAG=v1.8.0
 STELLIO_PORT=8080
 
 # MongoDB variables
@@ -20,25 +20,3 @@ MONGO_DB_VERSION=4.4
 # Tutorial variables
 TUTORIAL_APP_PORT=3000
 TUTORIAL_DUMMY_DEVICE_PORT=3001
-
-##
-
-POSTGRES_PASSWORD=postgres_password
-
-NEO4J_PASSWORD=neo4j_password
-NEO4J_DEFAULT_DATABASE=stellio
-NEO4J_ALLOW_UPGRADE=false
-
-STELLIO_SEARCH_DB_DATABASE=stellio_search
-STELLIO_SEARCH_DB_USER=stellio_search
-STELLIO_SEARCH_DB_PASSWORD=stellio_search_db_password
-
-STELLIO_SUBSCRIPTION_DB_DATABASE=stellio_subscription
-STELLIO_SUBSCRIPTION_DB_USER=stellio_subscription
-STELLIO_SUBSCRIPTION_DB_PASSWORD=stellio_subscription_db_password
-
-STELLIO_DOCKER_TAG=dev
-
-STELLIO_AUTHENTICATION_ENABLED=false
-
-ENVIRONMENT=docker