Remove signatures in-place from AppInsights agent jar before adding it to worker package

[ahmedmuhsin]

Update the packaging script to avoid the need to extract the complete JAR before removing the signature files. Instead of extracting the JAR, we now remove the signature files in-place by using a zip utility. This change reduces the time taken to package the worker and also reduces the disk space required to extract the JAR.

Pull request checklist

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