rubocops/lines: remove existing npm audit

Library/Homebrew/rubocops/lines.rb

@@ -750,18 +750,6 @@ module RuboCop
             problem "Use ruby-macho instead of calling #{@offensive_node.source}"
           end
 
-          find_every_method_call_by_name(body_node, :system).each do |method_node|
-            # Skip Kibana: npm cache edge (see formula for more details)
-            next if @formula_name.match?(/^kibana(@\d[\d.]*)?$/)
-
-            first_param, second_param = parameters(method_node)
-            next if !node_equals?(first_param, "npm") ||
-                    !node_equals?(second_param, "install")
-
-            offending_node(method_node)
-            problem "Use Language::Node for npm install args" unless languageNodeModule?(method_node)
-          end
-
           problem "Use new-style test definitions (test do)" if find_method_def(body_node, :test)
 
           find_method_with_args(body_node, :skip_clean, :all) do
@@ -856,11 +844,6 @@ module RuboCop
           {(dstr (begin (send nil? %1)) $(str _ ))
            (dstr _ (begin (send nil? %1)) $(str _ ))}
         EOS
-
-        # Node Pattern search for Language::Node
-        def_node_search :languageNodeModule?, <<~EOS
-          (const (const nil? :Language) :Node)
-        EOS
       end
     end
 

Library/Homebrew/test/rubocops/text/miscellaneous_spec.rb

@@ -147,27 +147,6 @@ RSpec.describe RuboCop::Cop::FormulaAudit::Miscellaneous do
       RUBY
     end
 
-    it "reports an offense when `npm install` is called without Language::Node arguments" do
-      expect_offense(<<~RUBY)
-        class Foo < Formula
-          desc "foo"
-          url 'https://brew.sh/foo-1.0.tgz'
-          system "npm", "install"
-          ^^^^^^^^^^^^^^^^^^^^^^^ FormulaAudit/Miscellaneous: Use Language::Node for npm install args
-        end
-      RUBY
-    end
-
-    it "reports no offenses when `npm install` is called without Language::Node arguments in an exempt formula" do
-      expect_no_offenses(<<~RUBY, "/homebrew-core/Formula/kibana@4.4.rb")
-        class KibanaAT44 < Formula
-          desc "foo"
-          url 'https://brew.sh/foo-1.0.tgz'
-          system "npm", "install"
-        end
-      RUBY
-    end
-
     it "reports an offense when `depends_on` is called with an instance" do
       expect_offense(<<~RUBY)
         class Foo < Formula