diff --git a/devel/libkolab/files/patch-CMakeLists.txt b/devel/libkolab/files/patch-CMakeLists.txt
deleted file mode 100644
index 39e5da84a78d..000000000000
--- a/devel/libkolab/files/patch-CMakeLists.txt
+++ /dev/null
@@ -1,20 +0,0 @@
-Remove -fno-check-new from CXX_FLAGS.
-
-The same reasoning given when this flag was removed from Akonadi also
-applies here: this a GCC-specific flag that makes the Clang build fail with
-Clang 3.4 (which started failing when unsupported flags are passed to it),
-and the overhead of non-null checks should be minimal.
-
-Sent upstream: http://lists.kolab.org/pipermail/devel/2014-March/014987.html
---- CMakeLists.txt
-+++ CMakeLists.txt
-@@ -82,7 +82,7 @@ if("${KdepimLibs_VERSION}" VERSION_GREATER "4.8.40" OR USE_LIBCALENDARING)
-     add_definitions(-DKDEPIMLIBS_VERSION_DEVEL)
- endif()
- 
--set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wnon-virtual-dtor -Wno-long-long -ansi -Wundef -Wcast-align -Wchar-subscripts -Wall -W -Wpointer-arith -Wformat-security -fno-exceptions -DQT_NO_EXCEPTIONS -fno-check-new -fno-common -Woverloaded-virtual -fno-threadsafe-statics -fvisibility=hidden -Werror=return-type -fvisibility-inlines-hidden -fexceptions -UQT_NO_EXCEPTIONS -fPIC -g" )
-+set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wnon-virtual-dtor -Wno-long-long -ansi -Wundef -Wcast-align -Wchar-subscripts -Wall -W -Wpointer-arith -Wformat-security -fno-exceptions -DQT_NO_EXCEPTIONS -fno-common -Woverloaded-virtual -fno-threadsafe-statics -fvisibility=hidden -Werror=return-type -fvisibility-inlines-hidden -fexceptions -UQT_NO_EXCEPTIONS -fPIC -g" )
- # message("${CMAKE_CXX_FLAGS}")
- set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -DQT_NO_DEBUG")
- 
-