If the GL driver version is below 3.1, we cannot set the primitive
restart fixed index (ES3 wont be supported anyway). Make sure the
feature is disabled.

Speculative fix for crbug.com/1073020

BUG=chromium:1073020
BUG=angleproject:3997

Change-Id: I67756b377aa951da2e70c26f7db978ede9010586
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2159289
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>