Get rid of the $pyvers variable

Since everyone has switched to Python3, it's time for the removal of the
$pyvers variable.

Change-Id: I371ef3a2e257e6d197238e7e9cbfd9d445405be5

manifests/defaults.pp

@@ -7,23 +7,18 @@
 class openstacklib::defaults {
 
   if ($::os['family'] == 'Debian') {
-    $pyvers = '3'
     $pyver3 = '3'
   } elsif $::os['family'] == 'RedHat' {
     if Integer.new($::os['release']['major']) > 8 {
-      $pyvers = '3'
       $pyver3 = '3.9'
     } elsif Integer.new($::os['release']['major']) == 8 {
-      $pyvers = '3'
       $pyver3 = '3.6'
     } else {
-      $pyvers = ''
       $pyver3 = '2.7'
     }
   } else {
     # TODO(tkajinam) This is left to keep the previous behavior but we should
     #                revisit this later.
-    $pyvers = ''
     $pyver3 = '2.7'
   }
 }

manifests/params.pp

@@ -6,9 +6,8 @@
 class openstacklib::params {
 
   include openstacklib::defaults
-  $pyvers = $::openstacklib::defaults::pyvers
 
-  $openstackclient_package_name = "python${pyvers}-openstackclient"
+  $openstackclient_package_name = 'python3-openstackclient'
 
   case $::osfamily {
     'RedHat': {

spec/classes/openstacklib_openstackclient_spec.rb

@@ -36,11 +36,7 @@ describe 'openstacklib::openstackclient' do
         when 'Debian'
           { :openstackclient_package_name => 'python3-openstackclient' }
         when 'RedHat'
-          if facts[:operatingsystemmajrelease] > '7'
-            { :openstackclient_package_name => 'python3-openstackclient' }
-          else
-            { :openstackclient_package_name => 'python-openstackclient' }
-          end
+          { :openstackclient_package_name => 'python3-openstackclient' }
         end
       end