Do not link vfw32 library for WinRT

HAVE_VFW flag is defined by CMake try_compile check.

Check fails for WINRT as vfw.h begins with

and contains empty set of functions for Store apps.

So we can safely remove vfw32.lib for WINRT in general

(independently of availability for specific configuration)

cmake/OpenCVFindLibsVideo.cmake

@@ -262,7 +262,9 @@ endif(WITH_MSMF)
 # --- Extra HighGUI and VideoIO libs on Windows ---
 if(WIN32)
   list(APPEND HIGHGUI_LIBRARIES comctl32 gdi32 ole32 setupapi ws2_32)
-  list(APPEND VIDEOIO_LIBRARIES vfw32)
+  if(HAVE_VFW)
+    list(APPEND VIDEOIO_LIBRARIES vfw32)
+  endif()
   if(MINGW64)
     list(APPEND VIDEOIO_LIBRARIES avifil32 avicap32 winmm msvfw32)
     list(REMOVE_ITEM VIDEOIO_LIBRARIES vfw32)