[develog.cfg] Update recipe to remove use of old script [ci skip]

develop.cfg

 [buildout]
-parts = scripts docker
+parts = scripts
 extensions = mr.developer
 auto-checkout = *
 develop = src/beat.backend.python
@@ -13,9 +13,3 @@ beat.backend.python = git https://gitlab.idiap.ch/beat/beat.backend.python
 
 [scripts]
 recipe = bob.buildout:scripts
-
-[docker]
-recipe = collective.recipe.cmd
-cmds = BUILDOUT=true ./scripts/docker_pull.sh
-on_install = true
-on_update = true