Westfield Montgomery Mall lost another eatery last week with the closing of Shanghai Bao Kitchen, a two-year-old concept from the owners of Bob’s Shanghai 66. The restaurant had made several attempts to revamp its menu in the past few months, adding sushi burritos, poke bowls and other trendy items, but it suffered from its out-of-the-way location plus competition from the neighboring B/Bop/Q.