Fix Gitlab/DelegatePredicateMethods offenses

Changelog: other
EE: true

.rubocop_todo/gitlab/delegate_predicate_methods.yml

@@ -5,5 +5,4 @@ Gitlab/DelegatePredicateMethods:
   - app/models/concerns/integrations/base_data_fields.rb
   - app/models/project.rb
   - ee/app/models/concerns/ee/ci/metadatable.rb
-  - ee/app/models/license.rb
   - lib/gitlab/ci/trace/stream.rb

ee/app/models/license.rb

@@ -315,7 +315,13 @@ class License < ApplicationRecord
       EE_ALL_PLANS
     end
 
-    delegate :block_changes?, :feature_available?, to: :current, allow_nil: true
+    def block_changes?
+      !!current&.block_changes?
+    end
+
+    def feature_available?(feature)
+      !!current&.feature_available?(feature)
+    end
 
     def reset_current
       cache.expire(CACHE_KEY)