Remove unnecessary beaker tests

It is good enough to assume that if puppet finished successfully then it
also successfully found and installed packages and applied configs. For
the sake of maintainability, remove unnecessary tests.

Change-Id: Iac783ddacfad7a58eca08635924e04da0016b625

spec/acceptance/frontend_spec.rb

@@ -15,42 +15,6 @@ describe 'puppet-openstack_health::api manifest', :if => ['debian', 'ubuntu'].in
     apply_manifest(frontend_puppet_module, catch_failures: true)
   end
 
-  describe 'required packages' do
-    describe 'os packages' do
-      required_packages = [
-        package('apache2'),
-        package('nodejs'),
-      ]
-
-      required_packages.each do |package|
-        describe package do
-          it { should be_installed }
-        end
-      end
-    end
-
-    describe 'npm packages' do
-      required_packages = [
-        package('node-gyp'),
-        package('gulp'),
-      ]
-
-      required_packages.each do |package|
-        describe package do
-          it { should be_installed.by('npm') }
-        end
-      end
-    end
-  end
-
-  describe 'required files' do
-    describe file('/opt/openstack-health') do
-      it { should be_directory }
-      it { should be_owned_by 'openstack_health' }
-      it { should be_grouped_into 'openstack_health' }
-    end
-  end
-
   describe 'required services' do
     describe 'ports are open and services are reachable' do
       describe port(80) do