Remove bugherd specs

I don't think these are worth the time it takes to execute them every
time but most importantly I believe we are not using Bugherd anymore.

spec/features/consumer/external_services_spec.rb

@@ -1,57 +0,0 @@
-require 'spec_helper'
-
-feature 'External services' do
-  include AuthenticationWorkflow
-  include WebHelper
-
-  describe "bugherd" do
-    describe "limiting inclusion by environment" do
-      before { Spree::Config.bugherd_api_key = 'abc123' }
-
-      it "is not included in test" do
-        visit root_path
-        expect(script_content(with: 'bugherd')).to be_nil
-      end
-
-      it "is not included in dev" do
-        allow(Rails.env).to receive(:development?) { true }
-        visit root_path
-        expect(script_content(with: 'bugherd')).to be_nil
-      end
-
-      it "is included in staging" do
-        allow(Rails.env).to receive(:staging?) { true }
-        visit root_path
-        expect(script_content(with: 'bugherd')).not_to be_nil
-      end
-
-      it "is included in production" do
-        allow(Rails.env).to receive(:production?) { true }
-        visit root_path
-        expect(script_content(with: 'bugherd')).not_to be_nil
-      end
-    end
-
-    context "in an environment where BugHerd is displayed" do
-      before { allow(Rails.env).to receive(:staging?) { true } }
-
-      context "when there is no API key set" do
-        before { Spree::Config.bugherd_api_key = nil }
-
-        it "does not include the BugHerd script" do
-          visit root_path
-          expect(script_content(with: 'bugherd')).to be_nil
-        end
-      end
-
-      context "when an API key is set" do
-        before { Spree::Config.bugherd_api_key = 'abc123' }
-
-        it "includes the BugHerd script, with the correct API key" do
-          visit root_path
-          expect(script_content(with: 'bugherd')).to include 'abc123'
-        end
-      end
-    end
-  end
-end