Fix Rails/Blank rubocop issue

.rubocop_todo.yml

@@ -365,13 +365,6 @@ Performance/RedundantMatch:
     - 'app/controllers/valuation/spending_proposals_controller.rb'
     - 'app/helpers/embed_videos_helper.rb'
 
-# Offense count: 1
-# Cop supports --auto-correct.
-# Configuration parameters: NilOrEmpty, NotPresent, UnlessPresent.
-Rails/Blank:
-  Exclude:
-    - 'app/controllers/management/base_controller.rb'
-
 # Offense count: 1
 # Cop supports --auto-correct.
 Rails/Delegate:

app/controllers/management/base_controller.rb

@@ -9,7 +9,7 @@ class Management::BaseController < ActionController::Base
   private
 
     def verify_manager
-      raise ActionController::RoutingError.new('Not Found') unless current_manager.present?
+      raise ActionController::RoutingError.new('Not Found') if current_manager.blank?
     end
 
     def current_manager