[SPARK-3802][BUILD] Scala version is wrong in dev/audit-release/blank_sbt_build/build.sbt

[sarutak]

In dev/audit-release/blank_sbt_build/build.sbt, scalaVersion indicates 2.9.3 but I think 2.10.4 is correct.

[SparkQA]

QA tests have started for PR 2661 at commit 58a9666.

• This patch merges cleanly.

[SparkQA]

QA tests have finished for PR 2661 at commit 58a9666.

• This patch passes unit tests.
• This patch merges cleanly.
• This patch adds no public classes.

[AmplabJenkins]

Test PASSed.
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[SparkQA]

QA tests have started for PR 2661 at commit 7090e17.

• This patch merges cleanly.

[SparkQA]

QA tests have finished for PR 2661 at commit 7090e17.

• This patch passes unit tests.
• This patch merges cleanly.
• This patch adds no public classes.

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Test PASSed.
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Test FAILed.
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[sarutak]

retest this please.

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Test FAILed.
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[sarutak]

retest this please.

[SparkQA]

QA tests have started for PR 2661 at commit 8b64bb7.

• This patch merges cleanly.

[SparkQA]

QA tests have finished for PR 2661 at commit 8b64bb7.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds no public classes.

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Test PASSed.
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[AmplabJenkins]

Can one of the admins verify this patch?

[nchammas]

@sarutak It looks like this code has now been changed to read from an environment variable. Do we still need this PR?

[JoshRosen]

Yeah, it looks like this has been subsumed by Andrew's changes in 723a86b, so do you mind closing this PR? Thanks!

[sarutak]

O.K, I'll close this PR.