input.c, simplify #ifdef for the broken visual studio _read()

If we have _MSC_VER so we have either CONSOLE HAS_WINGUI or SHARED_MODULE
If we have SHARED_MODULE, then we most certainly don't need
  the unbuffered read(), which isn't unbuffered on _MSC_VER anyway.
Thus _MSC_VER is sufficient.

src/frontend/parser/input.c

@@ -25,7 +25,7 @@ int
 inchar(FILE *fp)
 {
 
-#if !(defined(HAS_WINGUI) || defined(_MSC_VER) && defined(CONSOLE))
+#if !(defined(HAS_WINGUI) || defined(_MSC_VER))
     if (cp_interactive && !cp_nocc) {
         char c;
         ssize_t i;