Revert wolfsentry_init_thread_context change.

Author: dgarske

src/wolfsentry_util.c

@@ -812,10 +812,8 @@ WOLFSENTRY_API wolfsentry_errcode_t wolfsentry_init_thread_context(struct wolfse
          * the held lock can be safely locked recursively from within the
          * interrupt context.
          */
-        if (thread_context->id == (wolfsentry_thread_id_t)((uintptr_t)WOLFSENTRY_THREAD_NO_ID - 0xffffff)) {
-            (void)WOLFSENTRY_ATOMIC_INCREMENT(fallback_thread_id_counter, 0xffffff);
-        }
-        (void)fallback_thread_id_counter;
+        if (thread_context->id == (wolfsentry_thread_id_t)((uintptr_t)WOLFSENTRY_THREAD_NO_ID - 0xffffff))
+            WOLFSENTRY_ATOMIC_INCREMENT(fallback_thread_id_counter, 0xffffff);
         WOLFSENTRY_SUCCESS_RETURN(USED_FALLBACK);
     } else
         WOLFSENTRY_RETURN_OK;