Remove unused satellites config

Note that the old migrations depend on 1_settings.rb, so we can't
quite remove those completely.

config/gitlab.yml.example

@@ -456,14 +456,6 @@ production: &base
   # 4. Advanced settings
   # ==========================
 
-  # GitLab Satellites
-  #
-  # Note for maintainers: keep the satellites.path setting until GitLab 9.0 at
-  # least. This setting is fed to 'rm -rf' in
-  # db/migrate/20151023144219_remove_satellites.rb
-  satellites:
-    path: /home/git/gitlab-satellites/
-
   ## Repositories settings
   repositories:
     # Paths where repositories can be stored. Give the canonicalized absolute pathname.
@@ -581,8 +573,6 @@ test:
     # In order to setup it correctly you need to specify
     # your system username you use to run GitLab
     # user: YOUR_USERNAME
-  satellites:
-    path: tmp/tests/gitlab-satellites/
   repositories:
     storages:
       default: