chore: delete storage transfer samples

[tritone]

Reasons to delete:

• Added in 2016 and not substantially updated since.
• Region tags were never implemented in other languages or used in the docs.
• Does not conform to current sample standards.
• @JesseLovelace started a new set of updated, conforming samples for STS (Java and Python implemented/published so far).

Fixes #2148

[snippet-bot]

Here is the summary of changes.

You are about to delete 11 region tags.

• storage-transfer/transfer.js:17, tag all
• storage-transfer/transfer.js:18, tag setup
• storage-transfer/transfer.js:26, tag auth
• storage-transfer/transfer.js:36, tag create_transfer_job
• storage-transfer/transfer.js:102, tag get_transfer_job
• storage-transfer/transfer.js:131, tag update_transfer_job
• storage-transfer/transfer.js:179, tag list_transfer_jobs
• storage-transfer/transfer.js:207, tag list_transfer_operations
• storage-transfer/transfer.js:245, tag get_transfer_operation
• storage-transfer/transfer.js:273, tag pause_transfer_operation
• storage-transfer/transfer.js:300, tag resume_transfer_operation

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[tritone]

@fhinkel is there something I missed as far as removing this from the CI?

[fhinkel]

I removed it from required tests. Did you send an internal CL to remove the job configs?

[fhinkel]

Good catch! Thank you.

[fhinkel]

Great, thanks!