timing: Remove redundant include file
There is no need to include winbase.h, as it will be pulled in by
windows.h as needed.
Fixes #2640
diff --git a/ChangeLog b/ChangeLog
index 04570e4..fbc9d7b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -64,6 +64,7 @@
codes to always wrap these codes into X.509 high level error codes before
returning. Fixes #2431.
* Fix typo in net_would_block(). Fixes #528 reported by github-monoculture.
+ * Remove redundant include file in timing.c. Fixes #2640 reported by irwir.
API Changes
* Extend the MBEDTLS_SSL_EXPORT_KEYS to export the handshake randbytes,