Merge pull request #19277 from Homebrew/rm-old-todo

rubocops/lines: Clean up an old TODO

Library/Homebrew/rubocops/lines.rb

@@ -948,8 +948,6 @@ module RuboCop
             end
           end
 
-          # TODO: Enforce order of dependency types so we don't need to check for
-          #       depends_on "rustup" => [:test, :build]
           [:build, [:build, :test], [:test, :build]].each do |type|
             find_method_with_args(body_node, :depends_on, "rustup" => type) do
               problem "Formulae in homebrew/core should use 'depends_on \"rust\" => #{type}' " \