Remove uneeded methods.

actionpack/lib/action_controller/metal/http_authentication.rb

@@ -124,7 +124,7 @@ def request_http_basic_authentication(realm = "Application")
       end
 
       def authenticate(request, &login_procedure)
-        unless authorization(request).blank?
+        unless request.authorization.blank?
           login_procedure.call(*user_name_and_password(request))
         end
       end
@@ -133,15 +133,8 @@ def user_name_and_password(request)
         decode_credentials(request).split(/:/, 2)
       end
 
-      def authorization(request)
-        request.env['HTTP_AUTHORIZATION']   ||
-        request.env['X-HTTP_AUTHORIZATION'] ||
-        request.env['X_HTTP_AUTHORIZATION'] ||
-        request.env['REDIRECT_X_HTTP_AUTHORIZATION']
-      end
-
       def decode_credentials(request)
-        ActiveSupport::Base64.decode64(authorization(request).split(' ', 2).last || '')
+        ActiveSupport::Base64.decode64(request.authorization.split(' ', 2).last || '')
       end
 
       def encode_credentials(user_name, password)
@@ -176,14 +169,7 @@ def request_http_digest_authentication(realm = "Application", message = nil)
 
       # Returns false on a valid response, true otherwise
       def authenticate(secret_key, request, realm, &password_procedure)
-        authorization(request) && validate_digest_response(secret_key, request, realm, &password_procedure)
-      end
-
-      def authorization(request)
-        request.env['HTTP_AUTHORIZATION']   ||
-        request.env['X-HTTP_AUTHORIZATION'] ||
-        request.env['X_HTTP_AUTHORIZATION'] ||
-        request.env['REDIRECT_X_HTTP_AUTHORIZATION']
+        request.authorization && validate_digest_response(secret_key, request, realm, &password_procedure)
       end
 
       # Returns false unless the request credentials response value matches the expected value.
@@ -226,7 +212,7 @@ def encode_credentials(http_method, credentials, password, password_is_ha1)
       end
 
       def decode_credentials_header(request)
-        decode_credentials(authorization(request))
+        decode_credentials(request.authorization)
       end
 
       def decode_credentials(header)

actionpack/lib/action_dispatch/http/mime_negotiation.rb

@@ -67,21 +67,6 @@ def format=(extension)
         @env["action_dispatch.request.formats"] = [Mime::Type.lookup_by_extension(parameters[:format])]
       end
 
-      # Returns a symbolized version of the <tt>:format</tt> parameter of the request.
-      # If no \format is given it returns <tt>:js</tt>for Ajax requests and <tt>:html</tt>
-      # otherwise.
-      def template_format
-        parameter_format = parameters[:format]
-
-        if parameter_format
-          parameter_format
-        elsif xhr?
-          :js
-        else
-          :html
-        end
-      end
-
       # Receives an array of mimes and return the first user sent mime that
       # matches the order array.
       #