diff --git a/doxygen-1.9.7-unicode-test.ptch b/doxygen-1.9.7-unicode-test.ptch
deleted file mode 100644
index 1d390b8..0000000
--- a/doxygen-1.9.7-unicode-test.ptch
+++ /dev/null
@@ -1,34 +0,0 @@
-diff -Nur doxygen-1.9.7-bug/doc_internal/releases.md doxygen-1.9.7/doc_internal/releases.md
---- doxygen-1.9.7-bug/doc_internal/releases.md	2023-05-18 20:19:49.000000000 +0200
-+++ doxygen-1.9.7/doc_internal/releases.md	2023-05-18 21:16:40.000000000 +0200
-@@ -2,7 +2,7 @@
- 
- The following table gives an overview of the doxygen releases with together with the release dates.
- <ul class="multicol">
--<li><b>Release 1.9.7</b>&nbsp;&nbsp;&nbsp; 18-05-2022</li>
-+<li><b>Release 1.9.7</b>&nbsp;&nbsp;&nbsp; 18-05-2023</li>
- <li><b>Release 1.9.6</b>&nbsp;&nbsp;&nbsp; 27-12-2022</li>
- <li><b>Release 1.9.5</b>&nbsp;&nbsp;&nbsp; 26-08-2022</li>
- <li><b>Release 1.9.4</b>&nbsp;&nbsp;&nbsp; 05-05-2022</li>
-diff -Nur "doxygen-1.9.7-bug/testing/061_U\314\201nicod\342\202\254_file.cpp" "doxygen-1.9.7/testing/061_U\314\201nicod\342\202\254_file.cpp"
---- "doxygen-1.9.7-bug/testing/061_U\314\201nicod\342\202\254_file.cpp"	2023-01-02 20:08:23.760982526 +0100
-+++ "doxygen-1.9.7/testing/061_U\314\201nicod\342\202\254_file.cpp"	1970-01-01 01:00:00.000000000 +0100
-@@ -1,7 +0,0 @@
--// objective: test a file with unicode characters in the name
--// check: 061___xC3_x9Anicod_xE2_x82_xAC__file_8cpp.xml
--
--class Test
--{
--};
--
-diff -Nur "doxygen-1.9.7-bug/testing/061_\303\232nicod\342\202\254_file.cpp" "doxygen-1.9.7/testing/061_\303\232nicod\342\202\254_file.cpp"
---- "doxygen-1.9.7-bug/testing/061_\303\232nicod\342\202\254_file.cpp"	1970-01-01 01:00:00.000000000 +0100
-+++ "doxygen-1.9.7/testing/061_\303\232nicod\342\202\254_file.cpp"	2023-01-02 20:08:23.000000000 +0100
-@@ -0,0 +1,7 @@
-+// objective: test a file with unicode characters in the name
-+// check: 061___xC3_x9Anicod_xE2_x82_xAC__file_8cpp.xml
-+
-+class Test
-+{
-+};
-+