update emg dev config compose

docker-compose.emg.dev.yml

 version: "3.6"
 services:
-  database:
-    networks:
-      - extnet
-    ports:
-      - "5432:5432"
   client:
     ports:
       - "80:80"
@@ -44,7 +39,3 @@ services:
       - type: bind
         source: ./preprocessor/
         target: /preprocessor/
-networks:
-  extnet:
-    name: emg-extnet
-    external: true
\ No newline at end of file