Remove plugins from project integrations page

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/views/projects/settings/integrations/show.html.haml

@@ -3,4 +3,3 @@
 - page_title 'Integrations'
 = render 'projects/hooks/index'
 = render 'projects/services/index'
-= render 'shared/plugins/index'

app/views/shared/plugins/_index.html.haml

@@ -6,13 +6,17 @@
       Plugins
     %p
       #{link_to 'Plugins', help_page_path('administration/plugins')} are similar to
-      system hooks but can be are executed as files instead of URL.
+      system hooks but are executed as files instead of sending data to a URL.
 
   .col-lg-8.append-bottom-default
     - if plugins.any?
+      .panel.panel-default
+        .panel-heading
+          Plugins (#{plugins.count})
         %ul.content-list
           - plugins.each do |file|
             %li
+              .monospace
                 = File.basename(file)
     - else
       %p.light-well.text-center

changelogs/unreleased/dz-plugins-project-integrations.yml

+---
+title: Add plugins list to the system hooks page
+merge_request: 17518
+author:
+type: added