Remove the `pretty` parameter for `usage_data`

app/controllers/admin/application_settings_controller.rb

@@ -20,8 +20,7 @@ class Admin::ApplicationSettingsController < Admin::ApplicationController
   def usage_data
     respond_to do |format|
       format.html do
-        usage_data = Gitlab::UsageData.data
-        usage_data_json = params[:pretty] ? JSON.pretty_generate(usage_data) : usage_data.to_json
+        usage_data_json = JSON.pretty_generate(Gitlab::UsageData.data)
 
         render html: Gitlab::Highlight.highlight('payload.json', usage_data_json)
       end

app/views/admin/cohorts/_usage_ping.html.haml

@@ -7,4 +7,4 @@
     = succeed '.' do
       = link_to 'application settings', admin_application_settings_path(anchor: 'usage-statistics')
 
-%pre.usage-data.js-syntax-highlight.code.highlight{ data: { endpoint: usage_data_admin_application_settings_path(format: :html, pretty: true) } }
+%pre.usage-data.js-syntax-highlight.code.highlight{ data: { endpoint: usage_data_admin_application_settings_path(format: :html) } }