(maint) drop some puppet 3 support

Author: h0tw1r3

manifests/server/root_password.pp

@@ -51,15 +51,12 @@
   if $mysql::server::create_root_my_cnf and $root_password_set {
     # TODO: use EPP instead of ERB, as EPP can handle Data of Type Sensitive without further ado
     file { "${facts['root_home']}/.my.cnf":
-      content => epp('mysql/my.cnf.pass.epp',$parameters),
-      owner   => 'root',
-      mode    => '0600',
+      content   => epp('mysql/my.cnf.pass.epp',$parameters),
+      owner     => 'root',
+      mode      => '0600',
+      show_diff => false,
     }
 
-    # show_diff was added with puppet 3.0
-    if versioncmp($facts['puppetversion'], '3.0') >= 0 {
-      File["${facts['root_home']}/.my.cnf"] { show_diff => false }
-    }
     if $mysql::server::create_root_user {
       Mysql_user['root@localhost'] -> File["${facts['root_home']}/.my.cnf"]
     }

spec/classes/mysql_server_spec.rb

@@ -202,23 +202,15 @@
 
           it { is_expected.to contain_mysql_user('root@localhost') }
 
-          if Puppet.version.to_f >= 3.0
-            it { is_expected.to contain_file('/root/.my.cnf').with(show_diff: false).that_requires('Mysql_user[root@localhost]') }
-          else
-            it { is_expected.to contain_file('/root/.my.cnf').that_requires('Mysql_user[root@localhost]') }
-          end
+          it { is_expected.to contain_file('/root/.my.cnf').with(show_diff: false).that_requires('Mysql_user[root@localhost]') }
         end
 
         describe 'when root_password set, create_root_user set to false' do
           let(:params) { { root_password: 'SET', create_root_user: false } }
 
           it { is_expected.not_to contain_mysql_user('root@localhost') }
 
-          if Puppet.version.to_f >= 3.0
-            it { is_expected.to contain_file('/root/.my.cnf').with(show_diff: false) }
-          else
-            it { is_expected.to contain_file('/root/.my.cnf') }
-          end
+          it { is_expected.to contain_file('/root/.my.cnf').with(show_diff: false) }
         end
 
         describe 'when root_password set, create_root_my_cnf set to false' do