diff --git a/pkgs/tools/misc/diffoscope/fix-test_fit.patch b/pkgs/tools/misc/diffoscope/fix-test_fit.patch
deleted file mode 100644
index cd275ea9e91c..000000000000
--- a/pkgs/tools/misc/diffoscope/fix-test_fit.patch
+++ /dev/null
@@ -1,58 +0,0 @@
-From f1e9fa32c925fe7fb3cd825a02dcff52d305d845 Mon Sep 17 00:00:00 2001
-From: Andrew Marshall <andrew@johnandrewmarshall.com>
-Date: Mon, 28 Aug 2023 19:03:38 -0400
-Subject: [PATCH] Fix test_fit with file 5.45
-
-See also 435a8fe9a201a7e74e705e06cc56b66fa6cb4af9.
----
- tests/comparators/test_fit.py | 20 +++++++++++++-------
- 1 file changed, 13 insertions(+), 7 deletions(-)
-
-diff --git a/tests/comparators/test_fit.py b/tests/comparators/test_fit.py
-index d8478c00..47258a3e 100644
---- a/tests/comparators/test_fit.py
-+++ b/tests/comparators/test_fit.py
-@@ -27,7 +27,11 @@
- from diffoscope.comparators.utils.specialize import specialize
- 
- from ..utils.data import data, assert_diff, load_fixture
--from ..utils.tools import skip_unless_tools_exist, skip_unless_tool_is_at_least
-+from ..utils.tools import (
-+    skip_unless_file_version_is_at_least,
-+    skip_unless_tool_is_at_least,
-+    skip_unless_tools_exist,
-+)
- from ..utils.nonexisting import assert_non_existing
- 
- cpio1 = load_fixture("test1.cpio")
-@@ -124,19 +128,21 @@ def test_nested_listing(nested_differences):
- @skip_unless_tools_exist("cpio")
- @skip_unless_tool_is_at_least("dumpimage", dumpimage_version, "2021.01")
- @skip_unless_tools_exist("fdtdump")
-+@skip_unless_file_version_is_at_least("5.45")
- def test_nested_symlink(nested_differences):
--    assert nested_differences[1].source1 == "dir/link"
--    assert nested_differences[1].comment == "symlink"
--    assert_diff(nested_differences[1], "symlink_expected_diff")
-+    assert nested_differences[2].source1 == "dir/link"
-+    assert nested_differences[2].comment == "symlink"
-+    assert_diff(nested_differences[2], "symlink_expected_diff")
- 
- 
- @skip_unless_tools_exist("cpio")
- @skip_unless_tool_is_at_least("dumpimage", dumpimage_version, "2021.01")
- @skip_unless_tools_exist("fdtdump")
-+@skip_unless_file_version_is_at_least("5.45")
- def test_nested_compressed_files(nested_differences):
--    assert nested_differences[2].source1 == "dir/text"
--    assert nested_differences[2].source2 == "dir/text"
--    assert_diff(nested_differences[2], "text_ascii_expected_diff")
-+    assert nested_differences[3].source1 == "dir/text"
-+    assert nested_differences[3].source2 == "dir/text"
-+    assert_diff(nested_differences[3], "text_ascii_expected_diff")
- 
- 
- @skip_unless_tools_exist("cpio")
--- 
-2.41.0
-