Remove bogus check

win32/Dir.c

@@ -33,10 +33,6 @@ static int utf8ToWchar(const char *utf8, wchar_t *out, int size) {
 static void wcharToUtf8(const wchar_t *w, char *out, int size) {
     int len;
 
-    if (!w || !out || size <= 0) {
-        out[0] = '\0';
-    }
-
     len = WideCharToMultiByte(CP_UTF8, 0, w, -1, out, size, NULL, NULL);
     if (len <= 0 || len > size)
         out[0] = '\0';