Remove unused TrackingGeometrySvc from SiSmearedDigitizationTool

Goetz Gayckenrequested to merge
goetz/athena:ATLASRECTS-5899_master_remove_unused_TrackingGeometrySvc into master

Remove unused TrackingGeometrySvc from SiSmearedDigitizationTool, fix to currently non-working jobOptions which utilise the SiSmearedDigitization.

This address ATLASRECTS-5899.

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