Google doesn't enable businesses to delete reviews on their Google Business Profile. This helps prevent businesses from deleting poor reviews due to bad experiences. To have a review removed, the person who wrote the review can delete the review, or a business can ask Google to remove an inappropriate review.
Why was my Google review removed?
In most cases, missing reviews were removed for policy violations like spam or inappropriate content. We do not reinstate reviews that were removed for policy violations. These removal measures help make sure that reviews on Google properties are relevant, helpful, and trustworthy.