Geo - Remove FDW related config from Omnibus

To-Do List

• .rubocop_todo.yml
• doc/update/README.md
• files/gitlab-config-template/gitlab.rb.template
• files/gitlab-cookbooks/gitlab-ee/attributes/default.rb
• files/gitlab-cookbooks/gitlab-ee/libraries/fdw_helper.rb
• files/gitlab-cookbooks/gitlab-ee/libraries/geo_postgresql.rb
• files/gitlab-cookbooks/gitlab-ee/recipes/geo-postgresql.rb
• files/gitlab-cookbooks/gitlab-ee/resources/postgresql_fdw.rb
• files/gitlab-cookbooks/gitlab-ee/resources/postgresql_fdw_user_mapping.rb
• files/gitlab-cookbooks/gitlab/attributes/default.rb
• files/gitlab-cookbooks/gitlab/libraries/helpers/base_pg_helper.rb
• files/gitlab-cookbooks/gitlab/README.md
• files/gitlab-cookbooks/gitlab/templates/default/database.yml.erb
• spec/chef/gitlab-ee/libraries/fdw_helper_spec.rb
• spec/chef/gitlab-ee/recipes/geo-postgresql_spec.rb
• spec/chef/gitlab-ee/resources/postgresql_fdw_spec.rb
• spec/chef/gitlab-ee/resources/postgresql_fdw_user_mapping_spec.rb
• spec/chef/recipes/gitlab-rails_spec.rb
• spec/fixtures/cookbooks/test_gitlab_ee/recipes/postgresql_fdw_create.rb
• spec/fixtures/cookbooks/test_gitlab_ee/recipes/postgresql_fdw_delete.rb
• spec/fixtures/cookbooks/test_gitlab_ee/recipes/postgresql_fdw_user_mapping_create.rb
• spec/libraries/helpers/base_pg_helper_spec.rb