Remove unnecessary status check

[lntotk]

In Table::Open function, we already judge status just after Decode footer, so the status judge before read index block is duplicate and unnessary, we can remove it.

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[lntotk]

@googlebot I signed it!

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[lntotk]

is the mac clang configuration have some error?

[pwnall]

LGTM. Thank you for this contribution!

I've kicked off importing this PR in google3 (our internal repository). The PR will eventually be merged by our bots.

[pwnall]

And to answer the question above.. the CI was fixed recently. Rebasing on top of master would've given you a green check here.

At this point, however, it's better to leave this PR as-is. Messing with it may confuse the bot.