diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0d31fab6d5b768f845826c7fb69c268466c6683d..5f55db017b9989b2686d6358633449a8e670061c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -176,11 +176,6 @@ if( CMAKE_CXX_COMPILER MATCHES "icpc" OR CMAKE_CXX_COMPILER_ARG1 MATCHES "icpc"
     ENDIF(XILD)
     MARK_AS_ADVANCED(XILD)
 
-    if( CMAKE_VERSION VERSION_LESS 3.11.0 )
-      set( CMAKE_CXX17_STANDARD_COMPILE_OPTION "-std=c++17" )
-      set( CMAKE_TRY_COMPILE_PLATFORM_VARIABLES CMAKE_CXX17_STANDARD_COMPILE_OPTION )
-      add_flag ( CMAKE_CXX_FLAGS ${CMAKE_CXX${CMAKE_CXX_STANDARD}_STANDARD_COMPILE_OPTION} )
-    endif()
     if( CMAKE_CXX_COMPILER_VERSION VERSION_LESS "19.0.5" )
       # std::filesystem uses ABI tags, which don't work 19.0.2 but do in 19.0.5
       add_flag ( CMAKE_CXX_FLAGS "-D_GLIBCXX_USE_CXX11_ABI=0" )