diff --git a/Library/Homebrew/rubocops/lines.rbi b/Library/Homebrew/rubocops/lines.rbi
deleted file mode 100644
index 4036b6dd7b..0000000000
--- a/Library/Homebrew/rubocops/lines.rbi
+++ /dev/null
@@ -1,24 +0,0 @@
-# typed: strict
-
-module RuboCop
-  module Cop
-    module FormulaAudit
-      class OnSystemConditionals < FormulaCop
-        sig { params(node: T.any, on_method: Symbol, block: T.proc.params(parameters: T::Array[T.any]).void).void }
-        def on_macos_version_method_call(node, on_method:, &block); end
-
-        sig { params(node: T.any, block: T.proc.params(macos_symbol: Symbol).void).void }
-        def on_system_method_call(node, &block); end
-
-        sig { params(node: T.any, arch: Symbol, block: T.proc.params(node: T.any, else_node: T.any).void).void }
-        def if_arch_node_search(node, arch:, &block); end
-
-        sig { params(node: T.any, base_os: Symbol, block: T.proc.params(node: T.any, else_node: T.any).void).void }
-        def if_base_os_node_search(node, base_os:, &block); end
-
-        sig { params(node: T.any, os_name: Symbol, block: T.proc.params(node: T.any, operator: Symbol, else_node: T.any).void).void }
-        def if_macos_version_node_search(node, os_name:, &block); end
-      end
-    end
-  end
-end