brotli: upgraded package to upstream

Upgraded app-arch/brotli to version 1.0.6 on amd64

Removed EAPI7 specific includes (eapi-ver7)

BUG=chromium:878728
TEST=sudo emerge brotli
CQ-DEPEND=CL:1272156

Change-Id: Ie1d2de3242601b6514fc0a8e1e809156da5b2e0e
Reviewed-on: https://chromium-review.googlesource.com/1238974
Commit-Ready: Amin Hassani <ahassani@chromium.org>
Tested-by: Amin Hassani <ahassani@chromium.org>
Reviewed-by: Amin Hassani <ahassani@chromium.org>
6 files changed