rubocop: In-line disables of Naming/MemoizedInstanceVariableName

Library/.rubocop.yml

@@ -323,11 +323,6 @@ Lint/DuplicateBranch:
     - "/**/{Formula,Casks}/*.rb"
     - "**/{Formula,Casks}/*.rb"
 
-# needed for lazy_object magic
-Naming/MemoizedInstanceVariableName:
-  Exclude:
-    - "Homebrew/lazy_object.rb"
-
 # useful for metaprogramming in RSpec
 Lint/ConstantDefinitionInBlock:
   Exclude:

Library/Homebrew/lazy_object.rb

@@ -10,9 +10,11 @@ class LazyObject < Delegator
   end
 
   def __getobj__
+    # rubocop:disable Naming/MemoizedInstanceVariableName
     return @__delegate__ if defined?(@__delegate__)
 
     @__delegate__ = @__callable__.call
+    # rubocop:enable Naming/MemoizedInstanceVariableName
   end
 
   def __setobj__(callable)