Revert "egl: handle EGL_IMAGE_EXTERNAL_FLUSH_EXT"

This reverts commit 34b1aa957a3f44ea9587ec43311e8434d3782cc1.

This series caused unexpected flickering artifacts with Iris driver on
Chrome OS and EGL_EXT_image_flush_external spec has not been published
yet.

Acked-by: Eric Engestrom <eric@engestrom.ch>
Acked-by: Kristian H. Kristensen <hoegsberg@google.com>
3 files changed