Get rid of the cluster recipes and tests

Co-authored-by: Sebastian Kippe <sebastian@kip.pe>

test/integration/cluster/serverspec/ipfs_cluster_spec.rb

@@ -1,27 +0,0 @@
-require 'serverspec'
-
-# Required by serverspec
-set :backend, :exec
-
-describe 'ipfs-cluster-ctl' do
-  # It is in the PATH
-  describe command('which ipfs-cluster-ctl') do
-    its(:exit_status) { should eq 0 }
-  end
-end
-
-describe 'ipfs-cluster-service' do
-  # It is in the PATH
-  describe command('which ipfs-cluster-service') do
-    its(:exit_status) { should eq 0 }
-  end
-
-  it 'is listening on port 9096' do
-    expect(port(9096)).to be_listening
-  end
-
-  it 'runs the ipfs-cluster-service' do
-    expect(service('ipfs-cluster')).to be_running
-    expect(service('ipfs-cluster')).to be_enabled
-  end
-end

test/integration/data_bags/credentials/ipfs_cluster.json

@@ -1,4 +0,0 @@
-{
-  "id": "ipfs_cluster",
-  "secret": "d9de2f31ca7e9989949010fed2e704f42b8e96fa1e8e60a0ad26611f0a01cf07"
-}