Remove unused windows.h include.

No behavior change.

Bug: none
Change-Id: Icd4a8f7cfece1cb1d07902adda3e78ad872c84d9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1639153
Commit-Queue: Nico Weber <thakis@chromium.org>
Commit-Queue: Jeremy Roman <jbroman@chromium.org>
Auto-Submit: Nico Weber <thakis@chromium.org>
Reviewed-by: Jeremy Roman <jbroman@chromium.org>
Reviewed-by: Elly Fong-Jones <ellyjones@chromium.org>
Cr-Commit-Position: refs/heads/master@{#665562}

ui/surface/transport_dib.h

@@ -14,10 +14,6 @@
 #include "build/build_config.h"
 #include "ui/surface/surface_export.h"
 
-#if defined(OS_WIN)
-#include <windows.h>
-#endif
-
 class SkCanvas;
 
 // -----------------------------------------------------------------------------