There is no way to disable reviews on a Google my Business local profile. If you're having trouble with inappropriate or spam reviews though, you can report them.
Here are the guidelines and instructions:
You can also report it to business support if that doesn't work:
On the other hand, if you're getting valid, negative reviews from actual customers, you'll have to respond to the negative review directly. Guidelines and instructions are here:
You won't be able to get rid of the local business page from Google. Deleting it will only remove the page from your dashboard, along with the ability to respond to reviews. The page itself however will remain visible via Google Maps and so will the ability for people to leave reviews.
Attract new customers with your free Google listing. Your listing appears right when people are searching for your business or businesses like yours on Google Search or Maps. Google My Business makes it easy to create and update your listing—so you can stand out, and bring customers in - https://www.google.com/business/