Google has removed Google+ business listings and reviews from it's search result pages. As pointed out on twitter:
— Joy Hawkins (@JoyanneHawkins) September 11, 2015 Full reviews removed, but oddly left add review buttons that open a popup window which then close themselves.
— Colleen Harris (@cdawg2610) September 11, 2015 This is yet another sign Google are slowly disolving Google+ to concente on other Google products.
More information on the Local Search Forum