diff --git a/srcpkgs/libcmis/patches/no-include-cxx-headers-from-extern-c.patch b/srcpkgs/libcmis/patches/no-include-cxx-headers-from-extern-c.patch
deleted file mode 100644
index cb03051e91c..00000000000
--- a/srcpkgs/libcmis/patches/no-include-cxx-headers-from-extern-c.patch
+++ /dev/null
@@ -1,19 +0,0 @@
-FTBFS: /usr/include/c++/9.2/memory:146:1: error: template with C linkage
-
---- a/inc/libcmis-c/repository.h
-+++ b/inc/libcmis-c/repository.h
-@@ -28,12 +28,12 @@
- #ifndef _REPOSITORY_H_
- #define _REPOSITORY_H_
- 
-+#include <libxml/tree.h>
-+
- #ifdef __cplusplus
- extern "C" {
- #endif
- 
--#include <libxml/tree.h>
--
- #include "libcmis-c/libcmis-c-api.h"
- #include "libcmis-c/types.h"
-