Remove additional jekyll file

Signed-off-by: Pete Lumbis <pete@upbound.io>

_config.yml

@@ -1,35 +0,0 @@
-# Site settings
-title: Crossplane
-url: "http://crossplane.io" # the base hostname & protocol for your site, e.g. http://example.com
-
-# Build settings
-markdown: kramdown
-
-# plugins
-# NOTE: github pages ignores custom plugins and any other plugin which is not whitelisted
-# SEE: https://pages.github.com/versions/
-plugins:
-  - jekyll-relative-links
-  - jekyll-babel
-  - jekyll-readme-index
-  - jekyll-redirect-from
-
-exclude:
-  - Gemfile
-  - Gemfile.lock
-  - vendor
-  - build
-
-defaults:
-  - scope:
-      path: ""
-    values:
-      layout: default
-  - scope:
-      path: "docs"
-    values:
-      layout: "docs"
-      github: "https://github.com/crossplane/crossplane/tree"
-
-sass:
-  sass_dir: ./_scss