Remove docker-machine 0.5.0-rc3 as stable was released

Casks/docker-machine050.rb

@@ -1,53 +0,0 @@
-cask :v1_1 => 'docker-machine050' do
-  version '0.5.0-rc3'
-  sha256 '9ac47f853b85fabdc552c4ed4a2d5f435ab0dc85ed8c2ca7f797c2fdf724d015'
-
-  # github.com is the official download host per the vendor homepage
-  url "https://github.com/docker/machine/releases/download/v#{version}/docker-machine_darwin-amd64.zip"
-  appcast 'https://github.com/docker/machine/releases.atom'
-  name 'Docker Machine'
-  homepage 'https://docs.docker.com/machine'
-  license :apache
-
-  container :type => :zip
-
-  binary 'docker-machine'
-  binary 'docker-machine-driver-amazonec2'
-  binary 'docker-machine-driver-azure'
-  binary 'docker-machine-driver-digitalocean'
-  binary 'docker-machine-driver-exoscale'
-  binary 'docker-machine-driver-generic'
-  binary 'docker-machine-driver-google'
-  binary 'docker-machine-driver-hyperv'
-  binary 'docker-machine-driver-none'
-  binary 'docker-machine-driver-openstack'
-  binary 'docker-machine-driver-rackspace'
-  binary 'docker-machine-driver-softlayer'
-  binary 'docker-machine-driver-virtualbox'
-  binary 'docker-machine-driver-vmwarefusion'
-  binary 'docker-machine-driver-vmwarevcloudair'
-  binary 'docker-machine-driver-vmwarevsphere'
-
-  postflight do
-    set_permissions "#{staged_path}/docker-machine", '0755'
-    set_permissions "#{staged_path}/docker-machine-driver-amazonec2", '0755'
-    set_permissions "#{staged_path}/docker-machine-driver-azure", '0755'
-    set_permissions "#{staged_path}/docker-machine-driver-digitalocean", '0755'
-    set_permissions "#{staged_path}/docker-machine-driver-exoscale", '0755'
-    set_permissions "#{staged_path}/docker-machine-driver-generic", '0755'
-    set_permissions "#{staged_path}/docker-machine-driver-google", '0755'
-    set_permissions "#{staged_path}/docker-machine-driver-hyperv", '0755'
-    set_permissions "#{staged_path}/docker-machine-driver-none", '0755'
-    set_permissions "#{staged_path}/docker-machine-driver-openstack", '0755'
-    set_permissions "#{staged_path}/docker-machine-driver-rackspace", '0755'
-    set_permissions "#{staged_path}/docker-machine-driver-softlayer", '0755'
-    set_permissions "#{staged_path}/docker-machine-driver-virtualbox", '0755'
-    set_permissions "#{staged_path}/docker-machine-driver-vmwarefusion", '0755'
-    set_permissions "#{staged_path}/docker-machine-driver-vmwarevcloudair", '0755'
-    set_permissions "#{staged_path}/docker-machine-driver-vmwarevsphere", '0755'
-  end
-
-  depends_on :formula => 'docker'
-  depends_on :arch => :x86_64
-end
-