syslog-ng: remove leftover patch

package/syslog-ng/patches/patch-CMakeLists_txt

@@ -1,11 +0,0 @@
---- syslog-ng-syslog-ng-4.11.0.orig/CMakeLists.txt	2026-02-24 15:47:15.000000000 +0100
-+++ syslog-ng-syslog-ng-4.11.0/CMakeLists.txt	2026-05-12 22:08:45.405987656 +0200
-@@ -91,7 +91,7 @@ find_package(Resolv REQUIRED)
- find_package(WRAP)
- external_or_find_package(JSONC REQUIRED)
- include(find_python_and_build_venv)
--include(find_ivykis)
-+#include(find_ivykis)
- pkg_check_modules(LIBPCRE REQUIRED libpcre2-8)
- 
- include(detect_features)