Remove unused include global_state.h from validationEGL.cpp. Bug: angleproject:2825 Change-Id: I34a7c520d31cf0a9321d5599046159ef9bf58be5 Reviewed-on: https://chromium-review.googlesource.com/1232973 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>