Remove unused peek view code

We haven't needed these since we started rendering the performance bar
in Vue.

app/views/peek/views/_gc.html.haml

-- local_assigns.fetch(:view)
-
-%span.bold
-  %span{ title: _('Invoke Time'), data: { defer_to: "#{view.defer_key}-gc_time" } }...
-  \/
-  %span{ title: _('Invoke Count'), data: { defer_to: "#{view.defer_key}-invokes" } }...
-gc

app/views/peek/views/_redis.html.haml

-- local_assigns.fetch(:view)
-
-%span.bold
-  %span{ data: { defer_to: "#{view.defer_key}-duration" } }...
-  \/
-  %span{ data: { defer_to: "#{view.defer_key}-calls" } }...
-redis

app/views/peek/views/_sidekiq.html.haml

-- local_assigns.fetch(:view)
-
-%span.bold
-  %span{ data: { defer_to: "#{view.defer_key}-duration" } }...
-  \/
-  %span{ data: { defer_to: "#{view.defer_key}-calls" } }...
-sidekiq

locale/gitlab.pot

@@ -5696,12 +5696,6 @@ msgstr ""
 msgid "Invocations"
 msgstr ""
 
-msgid "Invoke Count"
-msgstr ""
-
-msgid "Invoke Time"
-msgstr ""
-
 msgid "IssuableStatus|Closed (%{moved_link_start}moved%{moved_link_end})"
 msgstr ""