Remove install packages config

Directory `start-notebook.d` doesn't exist in the image `jupyter/datascience-notebook:r-4.1.1` and when I removed the config the deployment worked

compose.yml

@@ -10,10 +10,6 @@ services:
       - JUPYTER_ENABLE_LAB=yes
     volumes:
       - jupyter_data:/home/jovyan
-    configs:
-      - source: install-packages_conf
-        target: /usr/local/bin/start-notebook.d/install-packages
-        mode: 0555
     deploy:
       restart_policy:
         condition: on-failure
@@ -38,11 +34,6 @@ services:
 volumes:
   jupyter_data:
 
-configs:
-  install-packages_conf:
-    name: ${STACK_NAME}_install_packages_${INSTALL_PACKAGES_CONF_VERSION}
-    file: install-packages.sh
-
 networks:
   proxy:
     external: true