Remove getIndexRange call from ValidateDrawRangeElements The spec doesn't require implementation to validate indices against range. This extra validation is costing performance dearly, thus should be removed. Bug: angleproject:4373 Change-Id: I61b0628e75de368d9e869008b7c99c429222fd6f Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2033495 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Tim Van Patten <timvp@google.com> Commit-Queue: Tobin Ehlis <tobine@google.com>