Due to
warning C4467: usage of ATL attributes is deprecated

Bug: angleproject:3928
Change-Id: I6620acc85ae974445a2a01fc109568fac8c3b23b
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2032152
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>