winrt: Removed WinRT/Windows Phone/UWP support.

Fixes #10724.

cmake/test/CMakeLists.txt

@@ -21,12 +21,6 @@ endif()
 message(STATUS "CMAKE_SYSTEM_NAME=      ${CMAKE_SYSTEM_NAME}")
 message(STATUS "CMAKE_SYSTEM_PROCESSOR= ${CMAKE_SYSTEM_PROCESSOR}")
 
-if(WINDOWS_STORE)
-    enable_language(CXX)
-    add_compile_options("$<$<COMPILE_LANGUAGE:CXX>:/ZW>")
-    set_source_files_properties(ain_cli.c main_gui.c PROPERTIES LANGUAGE CXX)
-endif()
-
 include(GenerateExportHeader)
 
 if(ANDROID)