Revert "make reponse from serve show up in the DOM"

This reverts commit b859436c5c8c7f1d8efe463515b8da3a3ce60a1b.
Revert "building out ratings feature."
[#Finishes 77091682]

This reverts commit c686666b470b74985700369e484bdf0678bd8c3a.

Conflicts:
	app/models/book.rb
	db/schema.rb