Remove unused "Edit Me" support from page template

We are not hosting this project on Github or Gitlab, and the "Edit Me"
links are unused. Remove support from the page template.

Change-Id: I7f86e2bcc18b1e547127c6229a1e780fd2363c6f
diff --git a/_config.yml b/_config.yml
index 0cd6775..ce4c606 100644
--- a/_config.yml
+++ b/_config.yml
@@ -12,12 +12,6 @@
 company_name: Gerrit
 # this appears in the footer
 
-#github_editme_path: tomjoht/documentation-theme-jekyll/blob/gh-pages/
-# if you're using Github, provide the basepath to the branch you've created for reviews, following the sample here. if not, leave this value blank.
-
-# gitlab_editme_path: tomjoht/documentation-theme-jekyll/blob/gh-pages/
-# if you're using GitLab, provide the basepath to the branch you've created for reviews, following the sample here. if not, leave this value blank.
-
 disqus_shortname:
 # if you're using disqus for comments, add the shortname here. if not, leave this value blank.
 
diff --git a/_layouts/page.html b/_layouts/page.html
index 9f91c36..b472c21 100644
--- a/_layouts/page.html
+++ b/_layouts/page.html
@@ -38,20 +38,6 @@
     {% include toc.html %}
     {% endunless %}
 
-
-    {% if site.github_editme_path %}
-
-    <a target="_blank" href="https://github.com/{{site.github_editme_path}}{% unless page.url contains "index.html" %}pages/{% endunless %}{{page.folder}}{{page.url | remove: ".html" | append: ".md"}}" class="btn btn-default githubEditButton" role="button"><i class="fa fa-github fa-lg"></i> Edit me</a>
-
-    {% endif %}
-
-
-    {% if site.gitlab_editme_path %}
-
-    <a target="_blank" href="https://github.com/{{site.gitlab_editme_path}}{% unless page.url contains "index.html" %}pages/{% endunless %}{{page.folder}}{{page.url | remove: ".html" | append: ".md"}}" class="btn btn-default githubEditButton" role="button"><i class="fa fa-gitlab fa-lg"></i> Edit me</a>
-
-    {% endif %}
-
   {{content}}
 
     <div class="tags">
diff --git a/css/customstyles.css b/css/customstyles.css
index 82db255..6ba7810 100644
--- a/css/customstyles.css
+++ b/css/customstyles.css
@@ -713,10 +713,6 @@
     color: #c0c0c0;
 }
 
-.githubEditButton {
-    margin-bottom:7px;
-}
-
 .endpoint {
     padding: 15px;
     background-color: #f0f0f0;