more clenaup

Author: dkuku

lib/ex_unit/lib/ex_unit/diff.ex

@@ -377,8 +377,6 @@ defmodule ExUnit.Diff do
     {parsed_left, improper_left, operators_left, length_left} =
       split_left_list(left, 0, env.context)
 
-    # For improper lists, we split based on the left side's structure
-    # For proper lists, we process the entire right side
     {parsed_right, improper_right} =
       if improper_left != [] do
         split_right_list(right, length_left, [])

lib/ex_unit/test/ex_unit/diff_test.exs

@@ -339,7 +339,6 @@ defmodule ExUnit.DiffTest do
   end
 
   test "proper lists" do
-    assert [:a | _x] = [:a, :b | :c]
     assert_diff([:a | [:b]] = [:a, :b], [])
     assert_diff([:a | [:b, :c]] = [:a, :b, :c], [])