Remove the additional unicorn spec

The new spec was failing and it was a false negative.

spec/chef/recipes/puma_spec.rb

@@ -119,6 +119,9 @@ RSpec.describe 'gitlab::puma with Ubuntu 16.04' do
         max_threads: 10,
         per_worker_max_memory_mb: 1000
       )
+      expect(chef_run).to render_file("/opt/gitlab/sv/gitlab-workhorse/run").with_content { |content|
+        expect(content).to match(%r(-authSocket /tmp/puma.socket))
+      }
       expect(Gitlab['gitlab_workhorse']['auth_socket']).to eq('/tmp/puma.socket')
     end
   end

spec/chef/recipes/unicorn_spec.rb

@@ -183,24 +183,4 @@ RSpec.describe 'gitlab::unicorn' do
       }
     end
   end
-
-  context 'custom socket location' do
-    before do
-      allow(Gitlab).to receive(:[]).and_call_original
-      stub_gitlab_rb(
-        unicorn: {
-          enable: true,
-          socket: '/fake/socket'
-        },
-        puma: { enable: false }
-      )
-    end
-
-    it 'should update workhorse auth_socket and render the unicorn.rb file' do
-      expect(chef_run).to render_file('/var/opt/gitlab/gitlab-rails/etc/unicorn.rb').with_content { |content|
-        expect(content).to match(/^listen \"\/fake\/socket\"/)
-      }
-      expect(Gitlab['gitlab_workhorse']['auth_socket']).to eq('/fake/socket')
-    end
-  end
 end