main: do not throw warning on previously working code.

Now that we forcefully shutdown elementary, we will always it the case below 0
for older code and throw some useless warning.

legacy/elementary/src/lib/elm_main.c

@@ -323,7 +323,6 @@ elm_shutdown(void)
 {
    if (_elm_init_count <= 0)
      {
-        ERR("Init count not greater than 0 in shutdown.");
         return 0;
      }
    _elm_init_count--;