remove explicit iterator debug level on Windows

example/windows/CMakeLists.txt

@@ -32,7 +32,7 @@ add_definitions(-DUNICODE -D_UNICODE)
 # Compilation settings that should be applied to most targets.
 function(APPLY_STANDARD_SETTINGS TARGET)
   target_compile_features(${TARGET} PUBLIC cxx_std_17)
-  target_compile_options(${TARGET} PRIVATE /W0 /wd"4100" /D_ITERATOR_DEBUG_LEVEL=2)
+  target_compile_options(${TARGET} PRIVATE /W0 /wd"4100")
   target_compile_options(${TARGET} PRIVATE /EHsc)
   target_compile_definitions(${TARGET} PRIVATE "_HAS_EXCEPTIONS=0")
   target_compile_definitions(${TARGET} PRIVATE "$<$<CONFIG:Debug>:_DEBUG>")