Revert "instrument responders"

This reverts commit a8b1ccfc4a.

lib/travis/api/app/responders/atom.rb

@@ -44,7 +44,6 @@ module Travis::Api::App::Responders
       super && resource.is_a?(ActiveRecord::Relation) && resource.first.is_a?(Build)
     end
 
-    instrument_method
     def apply
       super
 

lib/travis/api/app/responders/badge.rb

@@ -4,7 +4,6 @@ module Travis::Api::App::Responders
       'svg'
     end
 
-    instrument_method
     def apply
       set_headers
       send_file(filename, type: :svg, last_modified: last_modified)

lib/travis/api/app/responders/base.rb

@@ -1,6 +1,5 @@
 module Travis::Api::App::Responders
   class Base
-    include Skylight::Helpers
     attr_reader :endpoint, :resource, :options
 
     def initialize(endpoint, resource, options = {})

lib/travis/api/app/responders/image.rb

@@ -10,7 +10,6 @@ module Travis::Api::App::Responders
       headers['Content-Disposition'] = %(inline; filename="#{File.basename(filename)}")
     end
 
-    instrument_method
     def apply
       set_headers
       send_file(filename, type: :png, last_modified: last_modified)

lib/travis/api/app/responders/json.rb

@@ -7,7 +7,6 @@ class Travis::Api::App
         super && !resource.is_a?(String) && !resource.nil? && accepts_log?
       end
 
-      instrument_method
       def apply
         super
 

lib/travis/api/app/responders/plain.rb

@@ -13,7 +13,6 @@ module Travis::Api::App::Responders
       super && (resource.is_a?(Log) || resource.is_a?(String))
     end
 
-    instrument_method
     def apply
       super
 

lib/travis/api/app/responders/service.rb

@@ -10,7 +10,6 @@ module Travis::Api
           resource.respond_to?(:run)
         end
 
-        instrument_method
         def apply
           cache_control
           result = normalize(resource.run)

lib/travis/api/app/responders/xml.rb

@@ -37,7 +37,6 @@ module Travis::Api::App::Responders
       super && @resource.first.is_a?(Repository)
     end
 
-    instrument_method
     def apply
       super