Update dEQP charts. The charts were regenerated, update the docs to point to the new charts. Also remove some redundancy (we don't need the overview to track differences in vendors) Bug: angleproject:3713 Change-Id: I2005031c4ca960d7f9afd80562957d31af795d61 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1721190 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Jonah Ryan-Davis <jonahr@google.com>