Scrutinizer Auto-Fixes

This patch was automatically generated as part of the following inspection:
https://scrutinizer-ci.com/g/Niktux/solidifier/inspections/9bf566fa-f81a-46aa-8189-11268875aead

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Merge pull request #17 from Niktux/scrutinizer-patch-1

Scrutinizer Auto-Fixes : remove useless use statements