Remove unneeded no-new-privileges option. Remove unused proxy network.

portainer/compose.yaml

@@ -3,10 +3,6 @@ services:
     image: portainer/portainer-ce:lts
     container_name: portainer
     restart: unless-stopped
-    security_opt:
-      - no-new-privileges:true
-    networks:
-      - proxy
     volumes:
       - /etc/localtime:/etc/localtime:ro
       - /var/run/docker.sock:/var/run/docker.sock
@@ -17,4 +13,4 @@ services:
 
 networks:
   default:
-    name: portainer_network
+    name: portainer_network