Remove wrl/client.h include from views.h

This isn't needed as of http://crrev.com/186382

BUG=
TBR=sky@chromium.org

Change-Id: Ib68322494d89754f47e0bfa2e504827804d9586c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1864091Reviewed-by: Robert Liao <robliao@chromium.org>
Commit-Queue: Robert Liao <robliao@chromium.org>
Cr-Commit-Position: refs/heads/master@{#706275}

ui/views/view.h

@@ -49,10 +49,6 @@
 #include "ui/views/view_targeter.h"
 #include "ui/views/views_export.h"
 
-#if defined(OS_WIN)
-#include <wrl/client.h>
-#endif
-
 using ui::OSExchangeData;
 
 namespace gfx {