Remove logic for Windows systems

... because we've never supported Windows OS.

Change-Id: I1351bd4e7b84957e3d84b7e779fb58f5af282b8e

lib/puppet/type/tempest_config.rb

@@ -44,7 +44,7 @@ Puppet::Type.newtype(:tempest_config) do
   newparam(:path) do
     desc 'The ini file Puppet will ensure contains the specified setting.'
     validate do |value|
-      unless (Puppet.features.posix? and value =~ /^\//) or (Puppet.features.microsoft_windows? and (value =~ /^.:\// or value =~ /^\/\/[^\/]+\/[^\/]+/))
+      unless value =~ /^\//
         raise(Puppet::Error, "File paths must be fully qualified, not '#{value}'")
       end
     end