Revert of replace COMPILE_ASSERT with static_assert in chrome/installer/ (patchset #1 id:1 of https://codereview.chromium.org/821673004/)

Reason for revert:
Changes breaks internal signing infrastructure (static_assert not defined in environment somehow).

Maybe after the holidays, we can revisit!

Original issue's description:
> replace COMPILE_ASSERT with static_assert in chrome/installer/
>
> BUG=442514
>
> Committed: https://crrev.com/b4aadc32a7fd6d42ac3cc9adbb20a8ee4a267572
> Cr-Commit-Position: refs/heads/master@{#309684}

TBR=gab@chromium.org,mostynb@opera.com
NOTREECHECKS=true
NOTRY=true
BUG=442514

Review URL: https://codereview.chromium.org/833513002

Cr-Commit-Position: refs/heads/master@{#309720}
11 files changed