Unfortunately for this case Reviews are unable to be removed as a feature of Google My Business listings. If you would like to have a presence for your company without reviews I would suggest creating a Brand Page.
If the reviews are in violation of Google's policy it is possible to flag them for removal (Read more).
Reviews are a big part of a company's digital presence in today's online ecosystem. It would be worthwhile to research reputation management strategies, particularly in relation to your industry, to find out best practices in getting reviews.