Removed superfluous C++ standard options

Signed-off-by: Gregory Shimansky <[email protected]>

Author: gshimansky

CMakeLists.txt

@@ -67,12 +67,12 @@ endif()
 include_directories(${CMAKE_CURRENT_SOURCE_DIR}/include)
 if(NOT MSVC)
   if(NOT WIN32)
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D__STDC_FORMAT_MACROS  -fPIC -std=gnu++17")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D__STDC_FORMAT_MACROS -fPIC")
   else()
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D__STDC_FORMAT_MACROS -std=gnu++17 -Wno-deprecated")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D__STDC_FORMAT_MACROS -Wno-deprecated")
   endif()
 else()
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D__STDC_FORMAT_MACROS  /wd4244 /wd4624 /wd4715 /wd4530")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D__STDC_FORMAT_MACROS /wd4244 /wd4624 /wd4715 /wd4530")
 endif()