remove puppet 0.24 support

Introduction of stdlib functions makes support of puppet < 2.7
impractical.

manifests/init.pp

@@ -83,7 +83,6 @@ define concat(
 
   $safe_name            = regsubst($name, '/', '_', 'G')
   $concatdir            = $concat::setup::concatdir
-  $version              = $concat::setup::majorversion
   $fragdir              = "${concatdir}/${safe_name}"
   $concat_name          = 'fragments.concat.out'
   $default_warn_message = '# This file is managed by Puppet. DO NOT EDIT.'
@@ -131,11 +130,6 @@ define concat(
     replace => $replace
   }
 
-  $source_real = $version ? {
-    24      => 'puppet:///concat/null',
-    default => undef,
-  }
-
   if $ensure == 'present' {
     file { $fragdir:
       ensure => directory,
@@ -148,7 +142,6 @@ define concat(
       notify  => Exec["concat_${name}"],
       purge   => true,
       recurse => true,
-      source  => $source_real,
     }
 
     file { "${fragdir}/fragments.concat":

manifests/setup.pp

@@ -7,14 +7,6 @@
 #   Since puppet should always manage files in $concatdir and they should
 #   not be deleted ever, /tmp is not an option.
 #
-# [$puppetversion]
-#   should be either 24 or 25 to enable a 24 compatible
-#   mode, in 24 mode you might see phantom notifies this is a side effect
-#   of the method we use to clear the fragments directory.
-#
-# The regular expression below will try to figure out your puppet version
-# but this code will only work in 0.24.8 and newer.
-#
 # It also copies out the concatfragments.sh file to ${concatdir}/bin
 #
 class concat::setup {
@@ -30,17 +22,11 @@ class concat::setup {
     fail ('$concat_basedir not defined. Try running again with pluginsync=true on the [master] and/or [main] section of your node\'s \'/etc/puppet/puppet.conf\'.')
   }
 
-  $majorversion = regsubst($::puppetversion, '^[0-9]+[.]([0-9]+)[.][0-9]+$', '\1')
-  $fragments_source = $majorversion ? {
-    24      => 'puppet:///concat/concatfragments.sh',
-    default => 'puppet:///modules/concat/concatfragments.sh'
-  }
-
   file { "${concatdir}/bin/concatfragments.sh":
     owner  => $id,
     group  => $root_group,
     mode   => '0755',
-    source => $fragments_source,
+    source => 'puppet:///modules/concat/concatfragments.sh',
   }
 
   file { [ $concatdir, "${concatdir}/bin" ]:

spec/defines/init_spec.rb

@@ -58,7 +58,6 @@ describe 'concat', :type => :define do
           :ignore  => ['.svn', '.git', '.gitignore'],
           :purge   => true,
           :recurse => true,
-          :source  => nil, # true for all but for puppet 24
         }))
       end