DEV: Remove unused fakeweb require (#110)

This doesn't actually seem to be used by the discourse-perspective specs, but it's causing specs of other plugins to flake out

Author: davidtaylorhq

spec/discourse_perspective_spec.rb

@@ -1,7 +1,6 @@
 # frozen_string_literal: true
 
 require "rails_helper"
-require "fakeweb"
 
 API_ENDPOINT = "https://commentanalyzer.googleapis.com/v1alpha1/comments:analyze?key="
 API_RESPONSE_TOXICITY_BODY =