Merge branch 'disable-deploy-edit-link' into 'master'

Remove link leading to a 404 error in Deploy Keys page

### What does this MR do?

This MR removes a link that would lead an admin to believe he/she could edit a deploy key, but clicking on this link would lead to a 404.

### Screenshot

![image](https://gitlab.com/stanhu/gitlab-ce/uploads/b36cd76287d6389a09f9e0e49c1b6751/image.png)

### What are the relevant issue numbers?

Closes #1866

See merge request !923

CHANGELOG

@@ -2,6 +2,7 @@ Please view this file on the master branch, on stable branches it's out of date.
 
 v 7.13.0 (unreleased)
   - Fix external issue tracker hook/test for HTTPS URLs (Daniel Gerhardt)
+  - Remove link leading to a 404 error in Deploy Keys page (Stan Hu)
   - Fix order of issues imported form GitHub (Hiroyuki Sato)
   - Bump rugments to 1.0.0beta8 to fix C prototype function highlighting (Jonathon Reinhart)
   - Fix Merge Request webhook to properly fire "merge" action when accepted from the web UI

app/views/admin/deploy_keys/index.html.haml

@@ -16,8 +16,7 @@
         - @deploy_keys.each do |deploy_key|
           %tr
             %td
-              = link_to admin_deploy_key_path(deploy_key) do
-                %strong= deploy_key.title
+              %strong= deploy_key.title
             %td
               %code.key-fingerprint= deploy_key.fingerprint
             %td